I can challenge him on the basis that he is a foreign invader not bothering to learn the local language. Most places in the world, how long do you think you can keep going without learning the local language before people start throwing 2" stones at your head? 2 years? 5 years? But here, nooo.... The indoctrination runs so deep that we feel we have to play doormat to anybody speaking the invader's tongue.

EDIT: Didn't he have a menorah showing on his fireplace mantle in a vlog just before Christmas?

And name calling... Scum is scum. You can call them that with flowery words if you feel like it. I like honesty more.