The scariest thing about Don’t Look Up is that as absurd as it is, it barely exaggerates. Much of our political elite are just as greedy and foolish, our media just as vapid, and our response to impending disaster exactly as mind-bogglingly irrational as in the movie.
There's one point where Russia and China send a missile or something to divert the comet, and the US blow it up because Bash wants to extract minerals from it.
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Because that's how US news would report it.
It was pretty strongly implied that it was sabotage, at least from how I interpreted it.