The problem is that (I doubt) Google is really doing this out of some misguided attempt at "protecting" people but rather as a reaction to what they perceive to be what the people want. When America was a very religious (Christian) country, media distributors stayed away from anything that appeared "blasphemous". They didn't necessarily do it because there was a law against it (there were some odd laws here and there, but the media didn't start actually challenging them until religion really fell out of favor), but because they were afraid of consumer reactions. Google (and every other tech company) is doing essentially the same thing here: speaking ill on certain topics is modern-day heresy and they just don't want to be attached to it because they do ultimately fear the consumer.
Even if you found a globally adoptable alternative to google, the same people who pushed Google to ban distribution of "misleading content" would start looking for ways to ban your globally adoptable alternative - at the network level if necessary (look what happened to Parler before they agreed to follow the unwritten rules). At the end of the day, we won't have truly free speech because far too few of us really want truly free speech.