The following is not a question: Can something come from nothing?

[Senshi]

Well for me, one problem I have here is that, from what I know, it's the theists who are making the claim that we, atheists, are saying the universe came from nothing.
As far as I can tell, many atheists are saying the universe came from a singularity, a something, which in turn didn't come 'from' anything since ideas like from, before, or after don't work at that stage.

Yeah, correct. But the thing with the singularity is also wrong... But they really usually say, ok then before that was a singularity, but why does that exists rather than not exist.

Is it really wrong? Please teach me why!

You have to keep in mind that in physics, time is a constituent element of the universe, it was created with the universe therefore "Asking what happened before the big bang is an irrelevant question, because there was no time before the big bang, it is like asking what is south of the south pole and there is nothing south of the south pole.- Stephen Hawking"

To answer your question I will refer you to the quantum foam. Particles of matter and anti-matter pop in and out of existence all them time and in every cubic inch of space. To understand it take this mathematical analogy 1 + -1 = 0, so we start with 0 then we add a particle and it's antiparticle and we still have 0. So did we get something from nothing or do we just have a different kind of nothing where something and its opposite exist?
That was a rhetorical question of course!