Those who stayed home hold some responsibility

Second most of the responsibility, actually (actual Trump voters take the most responsibility). They screwed up, and now we’re all paying the price.

But now we have bigger fish to fry. There’s a constitutional crisis on, and a united front is needed against the right.

Also true. If Trump voters and non-voters realize that they screwed up badly and want to work to fix it, then we need to accept their apology, forgive them, and let them stand with the rest of civilized humanity in countering Trump, Must, and their goons.