I can assure you that most people would not bat an eye they were asked to use a different pronoun. The problem starts when they are 1) forced to do so b) suddenly have to "disclose" their own pronouns, and you end up on a zoom call with he/hims she/hers and one they/them.
The problem is not that some people want to stop being marginalised, the problem is that the aim is to marginalise a normal person.
If they are rude then you can bring it up with your manager about them being rude. Companies usually doesn't accept rude behaviour or bullying. If they are fine with rude behaviour and bullying then you will have problems regardless of the political stance of the company.
There is no law that makes people call other people by their given names too. Or law that makes people call priests "father". I don't understand how that can be so hard to fathom.
> There is no law that makes people call other people by their given names too.
Actually this would likely fall under some form of workplace harassment issue, and the company would have a duty to stop the harassment. ("Offensive conduct may include, but is not limited to, offensive jokes, slurs, epithets or name calling, physical assaults or threats, intimidation, ridicule or mockery, insults or put-downs", and it's kind of hard to imagine how calling someone a name that isn't theirs isn't a form of mockery or name calling.)
The problem is not that some people want to stop being marginalised, the problem is that the aim is to marginalise a normal person.