AVRAHAM: He seems to be frum but really he's a Ba'al Teshuva and his father made idols, not exactly our kind…
YITZCHAK: Well, his grandfather made idols, there was all that nastiness with Lot and his half brother is an Arab..
YOSEF: His mother had an idol once and she died early, plus he's a slave and his brothers don't like him. There must be something in that … you know where there’s smoke there’s fire…
MOSHE: His parents separated, then they got back together, his parents abandoned him, put him in a basket, he was raised by goyim… not our kind for sure.
KING DAVID: Descended from a convert, not our kind of people. Sure, a few generations have gone by but all things being equal, shouldn't we look for someone with a more 'Jewish' background?
SHLOMO HA’MELECH: See above, also his mother's marriage was a little dubious, don’t you think? He is rich, though, but the yichus and family background is very troubling.