Who are "they"?

I have to give credit to the poster on this forum called Photolysis who put it so well IMO.
I never understand why people say "this can't have happened out of nothing ... but something far more powerful could have!"
or the alternative
"this can't have always existed ... but something far more powerful could have!"
It makes absolutely no sense, since it's basically saying the more complex something is, the more likely it had no cause.
Oh and I love the "if you can't explain it I AM AUTOMATICALLY RIGHT!!!!!111" bit as well.
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Fine, so this something that the something came from, where did that come from?![]()
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