He said, “Al-Aqsa is ours and so is the Church of the Holy Sepulchre. They have no right to desecrate them with their filthy feet. We won’t allow them to do so and we will do whatever we can to defend Jerusalem.”
Clearly he is not referring to Israeli Muslims or Israeli Arabs, and he just as clearly is not referring only to Israeli Jews - non-Israeli Jews who visit the Temple Mount are just as abhorrent to Mahmoud Abbas.
So Mahmoud Abbas believes that Jews have dirty feet.
Which is mainstream Muslim theology.
As we have seen, Abbas is not alone in considering Jews to be dirty. UNRWA school websites have said the same thing, quoting a hadith. Cached pages from UNRWA are here and here.