Modern Judaism exists because they reject Jesus Christ as the Messiah.
The degree to which they exhibit hatred towards him as a supposed false Messiah varies but other than “Messianic Jews” who are basically a different kind of Christian (which Kushner is not and which Ivanka did not become) they all deny Christ.
For those raised in it it is a pardonable ignorance and their salvation is between them and GOD.
Any Christian who converts is rejecting Christ and although we can’t pass final judgement on them we must take it as a major warning sign.
[Insert that gif of the guy yelling "oh noes!" and running around.]
All I can say is wow! Think of all the non-Christians who are doomed, I tell ya, doomed!
There is a whole, huge world of seven billion people, many who believe differently than I do, or you do, and most of them are good people.
Unless their religion dictates them chopping off heads of infidels, I can usually find some common ground.