No, you've made up another non-existent 'force', because your FIRST one crapped the bed.
No, I have appealed to a particular manifestation of an already well known force to explain reality.
I know, you hate reality. But I don't give a damn about you hating reality. I'm not going to pretend reality isn't real just to baby you.
The buoyant force is a direct result of the observed pressure gradient.
Are you going to try claiming that fluids don't push things from high pressure to low pressure?
Because there are plenty of examples of that, and that is what you need to reject to reject the buoyant force.
We can also see it isn't simply gravity that causes this buoyant force.
We also see it in a centrifuge, where things are spun at very high speeds with the apparent centrifugal force acting like very strong gravity. This causes the more dense parts to go to the outside, while the less dense parts go to the inside.
We can even see it with simpler acceleration in a car with a helium balloon, showing it isn't simply "mass and density" like you want to claim:
(and this behaviour is another piece of evidence to support the equivalence principle)
A submarine can sink down into water, and rise up to the surface
Yes, by balancing the force due to gravity and the force due to buoyancy.
If gravity wasn't real, they wouldn't need to balance, they would just be able to go wherever they wanted.
their relative mass and density is the cause in all cases, within air, and within water.
As repeatedly explained, it isn't.
Mass and density have no directionality.
As such it provides no explanation at all for why a denser object should go down and a less dense object should go up.
You need gravity for that.
Even if you don't want to accept it as gravity, you need something more.
You need an origin for the directionality.
You need to make up TWO magical non-existent 'forces' to excuse it.
No, I need to utilise 2 quite real forces, as any honest person would.
2 real forces which explain quite a lot.
You not liking them because it doesn't fit your delusional fantasy doesn't make them magical.
You cannot demonstrate any problems with either of these forces.
And I also notice you want to just limit it to things falling and rising on Earth, ignoring the rest that these 2 forces explain.
There's no argument which works by making things up that don't exist. A made up force isn't better with another made up force that was needed to help solve problems of the first one, which is inevitable because it was made up to begin with, it will always fail to hold up, at certain points, it always does.
We can see this for YOUR fairy tale story, all over the place. Piles of lies, stacked way up high.
Lies are only supported by more and more lies, that's how it survives another day, or year, and this has lasted for centuries, but it will die, one day, it is inevitable.
Which is why your argument are yet to work.
All you have are lied, built upon more lies.
Remember, you started this little tirade of yours based upon the outright lies that gravity is constant and you don't feel any resistance, so it's not a real force.
Yet in reality, it varies, and that is a massive problem for FEers as they can't explain why it varies, and you do feel resistance in the form of the weight of the object, which you now need to run from.
You also said moving an object to the right, will not magically move back there afterwards.
No, it wouldn't move back, and it WOULD be magical, indeed!
Which shows your claims are pure garbage.
This shows that things don't magically move back to their origin.
It shows your claims that things fall only because you lift them is garbage.
Why should moving an object up cause it to fall down if moving it right doesn't cause it to fall left?
Until you can explain that directionality, all you have is pure magic.
And again, appealing to the origin doesn't explain it, as if it did it would work with all directions, not just up and down.
The simple explanation is that there is a force acting to move things down, and this force is what causes it to fall. You lifting it up just gives it a chance to fall.
There isn't a body in motion. unless it's motion is first caused by a force, therefore.
This presupposes all objects began to exist at rest.
It also ignores that all motion is relative.
And that force doesn't need another force to stop it's motion, the force which caused it's motion, is not an eternal force that never stops acting on an object, and it will dissipate over time, and stop entirely, which stops the object's motion, as well.
This shows a complete lack of understanding of Newtonian mechanics.
And this isn't what you are describing either.
The force causes the object to accelerate.
It does not cause it to obtain some velocity.
We can see this with things like cars, where it takes a lot more force to get them up to speed than it take to have them maintain their speed due to air resistance.
And if you make it more aerodynamic, the force required decreases.
This shows that forces cause acceleration, not simply motion.
So if you accelerated an object and then removed all forces, it would continue in motion forever.
But again, that isn't what you are describing.
What you are describing is more like:
Forces are pure magic. If you apply a force to move something up, it will go up, but if you remove that force, it will magically cause it to slow down and then start moving downwards, by pure magic.
That isn't simply having it stop. That is then also having it start to accelerate in a different direction with no force acting on it.
It is pure magic.
So your fantasy goes directly against the known laws of motion.
Newton simply ignored there was a force that caused a body to BECOME in motion, and said it would remain in motion unless acted on by another force, which is complete BS.
No, it isn't BS. Just because things don't match your delusional fantasy doesn't mean it is BS.
Newton was a massive improvement over the prior nonsense that the natural state of everything was at rest.