The problem with the Simulation theories is that it makes assumptions.
That we are all inside the simulation... that we are all simulons, ie not real.
Or other such things.

Nah. They don't all do that. They are also not theories. They are just hypothesis. You don't get to be a theory in the scientific method unless you can perform an experiment and it passes the tests and is repeatable.

In common vernacular as used when people say "Conspiracy Theory" though hypothesis and theory seem interchangeable.

Simulation Hypothesis is proposed by the scientific, mathematic, and philosophical communities so it isn't remotely close to an actual theory and I suspect never will be.

There are plenty of ways it could be a simulation and NOT be what you were expressing there. Let me go back a bit and snag another quote from your reply.

What difference does it make?

If you think you are real, then answer that question yourself. :)

Further, i must state that we have free will.

Yep, a simulation like we would be in wouldn't change that.

Though if God is Omniscient and can even see the future do we in fact have free will if it is predestined? (One of several contradictions that can trip us up - Is it free will, or is God Omniscient and can predict the future? If it is the later then we only have the illusion of free will)

:)

We can, if we choose, move aside the veil and get to know God.
This is a direct knowing... unfortunately, it cannot be proven to anyone else.
But you can meet with God, talk with God. Ask all kinds of questions.

None of that changes if we are in a simulation.

People don't seem to GRASP the simple thing. "God created the universe".

What is a simulation? A creation.

God created the universe and decided the rules it would operate by.

Again.. works fine with the concept of simulation.

The simulation hypothesis does not detract from ANY religion the exists except for those that don't believe in a creator.

The only thing the simulation hypothesis actually requires is a creator.