Hi Holo,
maybe there are some more sophisticated arguments out there, but I haven't come across them so far.
I am not sure that more sophisticated arguments are going to help. The simple and very easy to understand arguments have already been presented and you have failed to understand them (or failed to try to understand them).
It can not be said any simpler than saying that science is an eternal process of gathering data, creating theories, tests those theories, and then adjusting the theories. Science does not claim to give all the answers, and atheists do not need to know all the answers to get through their life (although many are clearly very inquisitive - otherwise science would not develop like it does).
Faith, is based upon some historical records which can not be proven and require the holder to "believe".
Well, it seems to me (sorry if I mis-represent you here) that you re saying that x must always = x, and y must always = y, otherwise we'll not have any way of knowing what anything is and go into an existential meltdown (not that I'm putting words in your mouth or anything! )
Basically, when considered all evidence in its entirety (including information from the bible and all the scientific evidence) the theoretical likelihood of a god changing the laws of physics at-will is very very low indeed. Since no credible scientific theories consider the likelihood of a god changing the laws of physics, there are no credible theories whether there will be an existential meltdown or not.
is as baffling to me as Christianity is to a lot of atheists
Christianity isn't baffling to me at all. You just don't like my view on why you are Christian. Like i have said before, I think it must be very comforting and sometimes I am jealous of the fact that you have that comfort, but I think it is a shame that so much effort is put into something which is in your head rather than in the physical world.
There is an argument to say that you (as an individual) may never be able to understand the above arguments or may never wish to try.