Stunt,
You keep doing this, but what you're doing is cloaking a whole lot of nothing (ha!) in a whole lot of words. There's not a word of what you wrote in all of your multiplicity of examples and explanations and historical context that I do not understand, and a lot of which I've already addressed within this thread. I can't help but feeling like you don't even read what I write.
For about the tenth time in this debate, I'm going to pare everything you say down to the modicum that's actually relevant.
We already know that things as we observe and experience and know them on the macro level are not how things work on the micro level. This is not begging a question, but a statement of fact. That Craig always uses examples from the macro level of our understanding, our "metaphysical intuitions," is very deceptive and dishonest.
Virtual particles are experiential justification. The knowledge that there was a point without spacetime is experiential justification because everything we know about causality is limited to spacetime. You can not name a cause we know of that is not understood because of predictions made withing spacetime, nor can you name a single cause we know of outside of spacetime. That spacetime is a barrier to our knowledge, and therefor should be a barrier to how far we extrapolate our knowledge, is hardly a radical or unreasonable notion.
I'm not trying to prohibit anything. All I'm trying to do is show that its premises are clearly contained within a certain system (our material universe and spacetime) and that there are already things that exists in modern science that challenge those terms. That causality is in question is something that's existed ever since the beginning of QM, and that you think I'm somehow "unreasonable" for wanting to limit causality to spacetime seems to show more of your ignorance of modern science than my ignorance of logic and philosophy.

No it doesn't. It cherry-picks conclusions and ignores all others that disagree with those conclusions and often misstates (or elides) parts of the conclusions that it does use. The BGV theory that Craig loves to parott doesn't even say what he says it says. He always says that it proves the universe has a beginning, but what he leaves out is that all it really says is that our universe had a beginning to its expansion. It says nothing of an ultimate beginning. Does Craig ever mention this? I wonder why?
What's more, The Kalam doesn't use any of its "understanding" to make hypotheses, theories, or tests that seek to explain that current understanding, so it most certainly isn't "just like science". It's nothing but Phlogiston (see my link/response to YesNo).