I'm in favor of regulated monopolies under some circumstances but making Facebook or any information-filter-platform into regulated monopoly sounds nightmarish.

I'm in favor of regulated monopolies under some circumstances but making Facebook or any information-filter-platform into regulated monopoly sounds nightmarish. I'd sort of trust the US government, at its best, to do some things. But I would never trust any state regulate content filtering. Beyond that, making sure it's always possible to host content on the Internet would be the most reasonable way guarantee free speech. And content filters would have competition this way as a content filter is a kind of content.