I understand this became a hot take in recent years, because you can always just "Colonize Earth". I do think there is an independent strategic value in terms of existential threats. It shouldn't be a rationale for abandoning environmental preservation and conservation on Earth.

One thing I see, all too often in Internet comment sections is things that could be complimentary are turned against each other and juxtaposed as if one interferes with the other. I don't know if there's a name for that but it happens often enough that it should have a name.