What's happening is people conflate "not suppressing speech" with "supporting hate speech." They don't support anything. They're nothing more at this point than a public space maintained by a private entity. Private entities I'll add that are essentially subsidized by taxpayers due to not meeting their obligations of paying their taxes, and no I'm not talking about minimizing tax obligations[0].
[0] - https://www.theverge.com/2020/2/19/21144291/facebook-irs-law...
And nobody ever said "no matter how objectionable." We still have limits on obscenity.