I'm sure you're familiar with its criticisms, so rather than repeat them here I'll just post a link. But how do you answer them?

Your other criticism of atheism essentially boils down to "you can't prove a negative". True, but no sensible person believes a positive without sufficient credible evidence. Until then, you assume the negative and lead your life as if the purported entity doesn't exist. This applies equally to extraterrestrial life, mythical creatures such as Nessie, and deities. Your supposed atheist who believes there's no possibility that a god could exist (as opposed to merely not believing that one exists) is a strawman: most atheists don't think that way, and those who do are wrong to do so.

The real point of difference is whether one accepts the evidence, such as it is, that a god exists. Just because I don't, doesn't mean I wouldn't if better evidence turned up.