Some previous posts about him and another character have made me feel uncomfortable
This might be true, but only if you are aware of who Velvy is. I do remember his story line but anyone starting to watch since he first joined the cast wouldn't know. And responses to his character cant in anyway be said to be about him being Jewish. There is nothing to say that is who he is (athough I think to begin with he had kept his long sidelocks).
In terms of understanding not only that English isn't his first language, and that he has little experience of being in and part of a wide community, how would you know.
ie if the script writers are seriously trying to show his journey from his roots and the consequence of him leaving them, there need to be ongoing hints in the dialogue. Not just Nikki saying is Velvey not coping, but some sort of allusion to him having to adapt to a totally different world and mourning the loss of contact with his wife and children.
ie instead of having he man Jack droning on and boring all of us and Nikki, they could have had a grown up conversation about Velvy and the journey his is making. Particularly as he is now living in Jack's house, and given that they gave air time to the really stupid notion that to feel really alive as a man you have to beat the shit out of someone.
I think it is the script writers doing a tick box exercise that is the problem.
Not sure which other character the comment was about.