Bill are laws that are supposed to protect the rights of a certain identity can also take away rights from others. If a law says that gays can't be made fun off, the freedom of speech of others has been infringed as they now can't make jokes about gay people.
The results of identity politics often end up violating the rights of other groups. We have to weigh protecting of rights against the taking of rights and not characterize identity politics as only protecting rights.