HR is always going to say "don't make waves". They don't care about the source of the waves, and never have. If you worked in Saudi Arabia, they would say eating pork and uncovering female faces was unprofessional. If you worked in the Vatican in 1850, they'd say eating flesh on Fridays was unprofessional. So if you work for an American corporation today, don't be surprised when HR expects you to drink the unwritten Kool-Aid about what is or is not sacred.