If Israel won't take them, the Palestinians should. They would gain in international credit for accepting Syrian or Iraqi refugees.
Israel has been blocking PA efforts to accept any of the 480000 Palestinian refugees currently in Syria. Haaretz.
Israel not taking Syrian refugees, if anything, is something very much expected. The countries are at war. Not even myself, having accused both Israelis and our many "whites" on these boards of all sins imaginable on the refugee issue, would think of making an issue of that.
However, this particular corollary to Israeli position I do find very unfortunate. I very much see where this is coming from: this is, of course, the spectre of the dreaded "right of return" and the "demographic problem between the Jordan and the Sea". Given the general lack of any desire on the part of the Israeli government for a two-state solution, it is hardly unexpected that they would not want to increase Palestinian population in the West Bank. But being not unexpected it does not make it any less unfortunate.