Yes, start your own twitter is a cop out because no one is willing to accept that they are listening to crazy things.
Plus this IS the free market solution that American speech norms are ok with. Businesses can choose who they give their services to.
If google doesn't surface results that's their choice. Drive business to duck duck go and Bing.
VOAT, Parler, are not havens of conservative/ neo-liberal, small government economic discussion. If you want that go to an actual economics forum, or get a economist/WSJ/BB subscription.
They aren't getting removed because they have "conservative" thought. They're getting removed because people sharing death threats, Nazi apologia, holocaust denial and organizing to stop other people from existing is generally handled by anti terror teams.
While saying this is usually unpopular on boards with a largely American user base - in many other countries this wouldn't even be a question.
Additional note - many people who read these debates have never gone to those sites, and will be swayed by people who come up here and say they visit those sites.
Be wary of false reports and equivalencies. I've recently condemned the actions of the_donald, and linked to evidence of their efforts to subvert r/all.
The response I received was that organized attempts to subvert reddit, and brigade the front page are the equivalent of other subs organically having their content rise to the front page.