No, that's clearly false. People throughout history have ended up in all sorts of cults despite scorn from broader society because of pressure from their local circles.

The premise that "full acceptance is a prerequisite for pressure that generates false acceptance" is faulty. Maybe you can find another premise which yields the same conclusion, but isn't faulty?

Full acceptance is necessary prior to having no risk of people suppressing their identity due to lack of acceptance. But that's the difference between a universal and an existential statement. Between "all" and "none" lies a lot of ground.