A lot of people do avoid the Washington Post because of Bezos' ownership, though. Although I don't really see Bezos using it as his megaphone. It seems to be more or less the same center-left paper as it was before. I don't read it every day, but I don't see articles saying Amazon is great or that unions are bad in it when I do.
It sounds like we agree then It's not the end of the world.
Because owning a social media company that dominates culture is equivalent to owning a newspaper.