SuStel:
I'd probably go with 'Irgh bully, intimidate, pick on, harass to express what you describe. lalDanDajmo' lu'Irgh they harass him/her because of his/her religion. You could express the severity of this further. lalDanDajmo' lu'Irgh; lutlha' 'ej lutIch.
Indeed, my first choice would be {'Irgh}. But can we be certain that we can use it for adults, and out of a school setting ? As far as {tlha'} is concerned, there is something which has troubled me with it in the past, but I forgot to ask about it then.. {tlha'} is given as "chase, follow". In english, does the verb "chase" have a negative connotation ? Can I chase someone for a good reason too ? Or is it neutral, and the reason of the chase defines whether it is used for good, or bad ? ~ cbcbcbb