> I have been told that I can’t do my job which includes negotiating with LGBTQ+ companies because I am an “old, white, cis guy and there is always an unfair power dynamic there” just because of my identity.
IANAL, and I don't know what "LGBTQ+ company" means, but if you believe that you're not being allowed to negotiate with other companies because of your age, race, and gender, you can (and should) sue for discrimination.