Nothing. Because that's ever so much more compelling from a scientific basis than something. Especially when that something involves a deity. When design inevitably becomes unavoidable, cue up the space aliens guy because that's what it'll be then.
Why settle for kicking the can down the road, when with a small nudge it's conveniently sent (outta' sight outta' mind? --out of reach, anyhow) across the galaxy?
Doctor Ph.D (piled high and deeper) fix-it to the rescue. Theory is now again safe. Just don't say the word 'God'. It has been decided. The word is not scientific, so must be a priori excluded. We must be kept safe from goat-herder mentality ideologies. They are ba-aad, m'kay? It's been scientifically proven.
But don't say anything bad about Islam(!) -- we're inclusive, and "sensitive" to people's "feelings" around here at the You-nye-diversity. Tearing down white-man Western Civ is still ok. It's the best thing to do --it's our reason for being-- we simply must --- It's the moral thing to do and WE decide what is and what is not moral. We are good. Believing in God is bad.
There's never been worse oppressor than the white male. Evil they are. Slaves built the you-nye-Die-versity. But not we-uns are bad, even if we be "white", because we hate ourselves so are excused (almost) as long as we keep hating ourselves...(unless we be wymens -- in that case it's ok to hate everybody except wymens because all men are rapists).
How can we keep doing this without becoming insane, you ask?
We've proved it. All the right people agree (that we're not crazy). But your stupid goat-herder god is stupid. Islam is ok though. Muslims, They are peaceful people but just look what happens to ya' if you believe in the goat-herder's "god"!!! we silently pity them -- they can't help it, they were born that way -- we must keep on putting ourselves down because that's the only way to lift others up We are the only sane people because science has proven it...
Even the space aliens explanation doesn't really work. Where did they come from? "Panspermia" ends up being "turtles all the way down".