RE ppl say they are a thing.
FE ppl agree they are a thing, and that's why space doesn't work.
RE people accept their existence, due to the evidence showing they exist, and understand that they were not a problem for Apollo, but modern electronics have greater shielding requirements due to their small component size, and that the path taken will affect shielding requirements.
While I'm not entirely sure, my understanding that the plan for Artemis was to pretty much go straight through the belts, rather than up and around.
FE people then blatantly misuse that to pretend they are an insurmountable problem for space flight, pretending that nothing can go through them, and that they would affect all attempts to go to space, even to go to LEO.
Why would FE ppl agree that it's a thing?
Other than actually saying they agree, it can be a reasonable position to accept as true for the purpose of argument something the opponent has said.
i.e. accept one premise they agree with to show a different premise is impossible.
It is an attempt to show a contradiction in their position.
There's absolutely no logical reason why any radiation belt would cover a spinning globe in a space vacuum.
The story is a good story along with all the rest of the sci-fi of space and planets...but that's all it is.
Your wilful ignorance has no impact on reality.
You not wanting to accept or investigate a reason doesn't mean it doesn't exist.
Firstly, it doesn't' cover the globe, hence the term "belt".
It isn't simply "radiation", they contain specific types of radiation, which can be grouped into a single type, charged particles.
And Earth has a magnetic field.
A charged particle moving through a magnetic field, will be accelerated by that field.
Thus the motion of the charged particles through Earth's magnetic field traps them into orbiting Earth.
So there quite clearly is a reason, a fairly simple one.
You not liking that, and wanting to strawman it doesn't change that.
None of it happens on any globe in a space vacuum.
Why? because you say so?
Again, reality doesn't care about what you want.
A globe could not hold any atmosphere because it cannot hold a foundation of it unless someone decided to throw a big glass bubble over it.
And more nonsense.
The foundation would be Earth. You don't need a bubble to have a foundation.
And the pressure gradient of the atmosphere clearly shows that it doesn't need a top.
So no, a globe could hold atmosphere, regardless of if you wanted to accept reality, and accept that gravity is holding it there, or if you want to go with your delusional BS which explains nothing with the atmosphere stacking against the foundation of Earth.
A cell setup can offer everything we see and feel.
No, it doesn't.
You are yet to provide a single example where your nonsense explains anything better than conventional science. Meanwhile, it has pointed out to you time and time again that your nonsense doesn't work, with clear explanations of why, and contradictions inside your model.
Covering Earth in a magical dome assists with nothing. If there wasn't a pressure gradient in the atmosphere, you may have a point, but there is, so no dome is needed.
Pretending Earth is flat doesn't help either.
A round Earth, with gravity, explains what is seen and felt.
Instead of us walking upon a fictional globe we can walk within a cell as the bacteria we are, among so many different bacteria eating away at it until it dies.
I'll stick to walking on the real globe, and leave your fantasy out of it.