This has been the law for decades, there is no lawsuit here for him. Religious, racial or sexual discussions or preferences do not belong in a business environment. Check any work manual. Another widely known but not always published is “don’t dip your pen in the company ink”.
If “gay” rights laws didn’t ram homosexual agenda crap down everyone’s throats, the topic would never have come up.
Homosexuals used to be hidden and considered people with severe problems, both psychological and moral, and that is the truth and the way it should be again.
This woman was shoving the homosexual agenda down the guy’s throat.