If there is a god, who has a plan, which involves absolutely everything that ever happens (by virtue of it being planned out by an omniscient being that therefore would know and take into account exactly what will happen when making any plan), would not you judging said plan, if you do so, necessarily be part of the plan in the first place and therefore be for you to do?
People think it's hilarious to reference the Darwin awards and say shit like "thinning the heard" but that shit is all based in eugenics which is largely based in ableism and that line of thinking has real life implications.
It's a shame ableists don't actually give a shit.