What would you call my new beliefs?

[SteveII]

Inductively, to escape the logical absurdity that physical matter always existed, what we are left with as an explanation is a non-physical, timeless, un-caused, force that was powerful enough to bring matter into existence out of nothing.

No.

Matter always existed within space-time, as matter cannot be created or destroyed within space-time. In the same way, the necessity of causality can only be demonstrated to hold within space-time - in point of fact, the idea of causality holding outside of time is nonsensical, since there is no time in which a cause could possibly precede an effect.

This is the failing of the various formulations of the cosmological argument. They all fail to establish that the idea of the universe having a cause is even coherent, let alone possible or necessary. They attempt to hide this by sleight of hand, trying to substitute the necessity of causality within the universe for evidence of its necessity outside - but this does not work, as the two are not equivalent.

Why should causality require our space/time? 

I see your move from space/time to just time in your second sentence. You are simply defining time and then telling us time by itself is nonsensical. I would agree since time is simply a measurement of change--and if there is nothing to change, you don't have time. If there is something that is changing prior to our universe in order to create our universe, you have time and therefore causality. 

Establishing that all physical changes have a cause is the only thing our experience and rational reasoning has ever told us. Additionally, if things can happen uncaused, why don't they happen now? What is your theory on why our universe can stop random uncaused things from popping into existence from nothing when without the universe, nothing could produce something? For really, how could a universe that came from nothing constrain nothing from generating something when nothing cannot be constrained because...there is nothing to constrain. Or perhaps nothing only generates really big complex universes and not everyday things like a french horn. 

So you want us to believe a theory that goes against everything we know and against reason, just to salvage the idea that the universe came from nothing. Sorry if I am not convinced.