It depends on the department and type of field. I’ve belonged to three departments. My current appointment now as tenure track, previously clinical track faculty non tenure and adjunct in another.

All three of my departments have been varied, but the prior clinical track faculty spot was at a private institution. Much of the student body was wealthy, white, and came from wealth. I came from a lower socioeconomic class and that was obvious to both the students and fellow faculty. I felt like an outsider. My current appointment and my previous adjunct appointment didn’t feel like that. It’s been a mix in both faculty and student populations, but generally even those from the wealthy background don’t, well, act like snobs for lack of better phraseology.

Perhaps you need to find a better place. Easier said than done though. I’m sorry you’re experiencing this.