That video above is not a true representation of would really happen in what we are told, is a vacuum of space.
For the most part it is.
pushing a bowling ball or wall in so called space would not push the person and object in opposite directions.
Yes, it will.
To create a push you have to have a resistance of something to allow you to push.
That is called inertia, which is also known as mass.
A floor will give you that for your feet and legs to use as a friction grip. So called space does not have this.
That is when you are pushing against the floor. In this case, they are pushing against a ball.
That ball has friction allowing you to grip it and other interactions preventing your hand from passing through it.
A person holding the bowling ball with feet on the ground can push that bowling ball away from him because his feet allow him to use the floor as leverage/friction.
That is right. They can remain stationary, due to the friction with the ground.
As they push on the ball, an equal and opposite force acts to push them back. This is transmitted through them and they push on the floor, with an equal and opposite force pushing them back.
As such, the net force on the ball (just a simple analysis) is the force pushing it forward. The forces on the person is the same magnitude force (equal) pushing them back (opposite) and a force on the ground (again equal in magnitude assuming friction is sufficient) pushing them forward, resulting in a net force of 0 or almost 0.
The net force on the ground is the same magnitude as the force on the person from the ground but opposite in direction, resulting in the ground being pushed back. But as that is Earth, that results in an acceleration of effectively 0.
If you remove that friction/leverage by going to outer space (or just a smooth ice rink even or water to a lesser extent), the person will no longer be able to remain where they are and instead they get pushed back.
In so called space, a person trying to push a bowling ball away would do nothing more than outstretch their arms and finger tips which takes the bowling ball with them and leaves it at the end of the fingertips.
Nobody goes anywhere and is why space is nonsense and even told to us about being real, would absolutely not allow action and reaction to take place to create equal and opposite movement in opposite directions in terms of propulsion.
No, your analysis is nonsense.
You started out correct.
In space, you start off with the ball and you at 0 separation. You then extend your arms, accelerating you and the ball and you and the ball moving further apart.
When your arms are fully outstretched, both you and the ball are moving with some velocity. Unless another force acts to stop you, you will keep on moving, and thus move apart.
The genuine people who can think, need to sit down and think hard on this.
No, most already have. If you can think you should sit down and think hard on it, not this crap you have come up with.