This may be a shock to you but since Athiests don't delusion themselves with a afterlife or imaginary friends, they know that we have one material world to share and maybe trashing it isn't the best course of outcome?
We're also suffering from Climate Change now. expanding Droughts, the aquifers are drying up, wild fires, brisker winters, changing environs, this is happening within our lifetimes. Syria's whole situation could had been sparked by a bad drought, and look at the geo-socio-political ramifications of one measly civil war in Europe that sparked a Alt-Right surgence across the globe and all the domino effects thereof.
NYC has become hotter and drier in my own 25 years. If I expect to live another 50 more, why live in a sweltering, worsening hellhole? So even if you think Atheists are selfish dicks, they're going to experience a changing clime in their own lifetimes, thus ticking off the selfish-concern box.
But you won't care. Not with that loaded, biased' language. Maybe two other posters will give you a reach around and a few others to me but you're obviously not coming in here in good faith or with a open mind.