I suspect it's much easier for someone to sue on the claim of being unfairly discriminated against than on the claim that a particular company policy with a legitimate stated justification is an unfair labor practice.
Lol ok. You realize I can say the exact same thing to you...
You've offered no facts to support what little you've said. You "suspect" some things and have been told some other things by your manager. I too have been told things by managers and suspect things myself. But I guess because it's your opinion, everyone else's opinion must be wrong.