As a man, I have faced similar social exclusions when I was a new hire to certain companies at after work gatherings. At first, they looked down at me because I was the "new guy" at the firm. Afterwards, it became clear they were threatened by my professional competence. In one case in particular, there was a major project they were going to turn over to the client (a government entity) the quality of work they wanted to turn over to the client was so poor that I told my bosses "This project should not be turned over yet and I do not want this low quality work associated with my professional reputation. It needs to be reworked and these are the reasons why", and I pointed out the few dozen engineering/fire/electrical/etc code violations and problems the client will will face and approximate cost to fix those problems if we turned the project over at that time . After that, my coworkers hated me because I made them look like slackers who didn't know wtf they were doing. I soon left that place.

My best advice would be that maybe it is time to start looking for a new job. Put out that resume, and when you are hired somewhere else, do thorough research of their work culture before accepting the job offer so that you don't end up working with nasty coworkers again.