You cant count them when its dark
One, but you can be sure a whole Reddit community will appear to expand the joke, make it funnier and eventually run it into the ground.
Only 2, but I have no idea how you're gonna fit both of them inside a lightbulb.
I don't know, but it must be an odd number because, "they can't even."
At least two, but they have to be pretty small to fit.
Black guy, because nword is mightier than sword.
A pilot, you racist.
Because they can only count to 3.
Because it's the little things that count.