Those sites weren’t taken offline by Democratic officials, they had to find new hosting after breaking the contracts they entered into with private companies. They were still free to move elsewhere, as they did, whereas in this case Wikipedia is being threatened with penalties for remaining in the country.

I would also note that the last straw for companies like Parler was involvement in a violent attempt to overthrow the government whereas in this case the objection appears to be constitutionally-protected speech. Again, those are nowhere near comparable situations. Where is something like, say, going after a right-wing non-profit because they published content which criticized Biden?

There was the whole IRS targeting of conservative groups under Obama.

And I’m sure the “government overthrowers” (lol) also used Facebook and Twitter, yet only these other ones were taken down. We later found out, of course, that the likes of FB and Twitter had embedded censorship teams working hand-in-glove with the security state and advocacy groups.