1. isolate the radicals;
2. "cultivate" the idealists and "educate" them into becoming realists; then
3. co-opt the realists
This is, in short tyranny's ongoing divide and conquer tactic so successful through the centuries.
Many people keep missing this obvious truth and thus their conclusions are marred with mistakes. The result is pretty much that they aid the tyranny in their attack on true freedom fighters and in their own subjugation and oppression.