Why is it so hard for theists to see free will doesn’t exist?

This is just beyond me, I don’t see how people can argue that an all knowing god also allows free will. This argument is so old it’s ridiculous, and still people keep bringing up this paradoxical idea that free will can somehow coexist with an all knowing god.

Look, if god knows the future, which according to the bible and general views of his being omniscient he does, then he already knows exactly what is going to happen, to everybody. He knows exactly what decisions you are going to make, and exactly what the outcome will be. Because of this, you can’t decide anything other than what he knows you are going to do. It might look like you can decide, that you have free will, but that is just an illusion. Here is a graphical representation of this if it helps:

You stand in the present. You have two immediate choices open to you. God, being all knowing, knows which one you will pick. He then knows what you will pick at time 1,2, and finally 3. It might look like you have 26 possible choices, but god knows you will pick left, center, right.

You, knowing this might think “Ok, I’m going to act as if I’m going to pick left, center, right, but at the last moment I’m going to suddenly change my mind and pick another combination. But god is all knowing. He would know that you plan on suddenly changing your mind and plan on not picking left, center, right. In that case the diagram above would not exist in the first place, instead it would show your new choice:

And still god knows what the final outcome will be. No matter how much it seems like you have many options from which you can freely choose, it’s already known what you will do, and you can’t not do it, ergo, free will does not exist.

One could say that what he knows is going to happen isn’t exactly what he wants to have happen, but he is the creator of everything, so he has the power to change the future if he wanted to. Some might argue that since he doesn’t change the future (or does he? There is no possible way you could tell) that this is him leaving us to our free will, but again, this explanation doesn’t escape the above argument.

It is just sooooo much simpler to accept that god does not exist and thus you do have free will. You are responsible for your actions, and you control your reactions to the various situations that might arise. It’s much more empowering than being trapped in an inescapable system where somebody already knows everything you’re going to do.