On the contrary, people have generally been smart enough to not do business with companies that won't want to do business with them (for example, nobody is really sure where the various [\d]chans are hosted, and Pornhub self-hosts). There are any number of actually competent people on the left, the right and orthogonal to politics that aren't visibly getting denied "critical infrastructure" because they simply knew better than to use it in the first place; what we are really witnessing is rather entitled people realising they're not guaranteed a ready-made popular platform (whether for an individual's speech or for an app's deployment). The lack of guarantee of a platform itself is far from news.
The fact is, right wing is present on Twitter, Facebook, reddit just fine.
What is not present are their radical wings, which were kicked away just like leftist violent radicals. Difference is that at least so far, mainstream left is ok with those being kicked.
