Yeah. I’m one of them. It’s actually happened a lot to me.

I think maybe the advantage, if there is one, is more being comfortable and able to explain yourself (your introversion) or an easier time switching jobs if you need to leave because of a bad cultural fit. Not that it always works or is accepted and acceptable, but reasonable people know that not everyone is a “cheerleader” or outgoing personality. Doesn’t mean that they don’t like their colleagues or aren’t excited by the company or their work. They’re just quiet, solitary, or “not a partier" kind of people.

You’ve got to push back on it and challenge the assumptions but not get too worked up over it or let it fester or anger you. If it bothers you that much, ask about it at the interview process and don’t work in a place that is going to require you to socialize in a manner you are uncomfortable with or don’t have time or inclination for.

You can also File a complaint against management or review process with HR, or write an essay leader to HR and the owner and higher ups detailing your concerns. Get others to do the same or to sign your letter too.

Start documenting. At some point if it’s really that bad you’ll have a lawsuit or the threat of one.

You don’t have to accept abuse, gaslighting, or employment redlining. You do have talk about and seek proper appropriate redress, and that takes extra work so you have to determine if it’s worth it to you to pursue.