Unlike some people, I will not pretend to know what is in people’s hearts and minds. But in the case of trump, he has no heart and not mind. For that matter no soul either. He will say and do anything that will endear him to his loathsome supporters. He is an empty shell of a sub human being with no core values or principles
On the other hand, you most certainly can know a person by the company that they keep and this gaggle of miscreants speaks volumes about who Trump is. You can defend Trump and deny what he is or is not but this event is real and there is no denying what these people stand for.
As for his Jewish family members, notice they are not on the guest list, and they have note been seen or heard from in a while and in fact have disassociated themselves from Trump. You do not know what their relationship is like with Trump these days or how they feel about him