The only real counter to this is for those who get silenced in this way to build their own platforms for disseminating their point of view. The only fly in that

The only real counter to this is for those who get silenced in this way to build their own platforms for disseminating their point of view. The only fly in that ointment I can see is if those who control the indexing are themselves biased - which is about 7 billion of us the last time I checked, i.e. we're all biased in one way or another. So what's to be done?