Maybe Lebanon, with their support for Hezbollah, is a threat to go to war with Israel. Also, Iran is the only country that would side with Hamas in any significant way. (meaning in a way that we would consider a threat) After all, they support Hamas with money (and they have lots of money now), and military equipment, and probably planning (including the recent massacres in Israel.) If even one Arab country was offering to take Palestinian refugees, I might be more worried about it spreading in the region because that would show real support for the Palestine people. Of course there are plenty of moving pieces involved in the situation that none of us know about, so really all bets are off and you could be 100% right.
The real fear that I have is Demented Joe either gaffing us into a shooting war there, or doing something so insane that we are caught up in it.