Until the matter is definitively resolved, your options are limited to complaining or spending a LOT of money on a lawsuit with a less than likely win.
If any case does determine that a site open for public comment and sponsored by the government must keep up statements that do not otherwise violate objective TOS, then I suspect that those sites will become read-only sites, or, the TOS will be quite narrow. Or, if even TOS violations are excluded from removal, it'll be no comment sites or these sites will be run by non-governmental folks.
My city has a Facebook page, but comments are disabled. You can RATE the site and Like things, so we get some local ne'er-do-wells who rate us at 1 star, but, we do not allow comments.
Our police association allows comments, but WE get to remove posts. Or, rather, *I* get to. I never have had to (people like us), but, I could if I wanted to.