I never said I supported Hamas, and I'm fully aware of what happens when countries let in too many Palestinians refugees. They tried to overthrow the governments of those countries.I am not Israel, nor do I think the demands Israel set for those wanting to escape are tenable, but I'm also of the opinion that Hamas is to blame for what is happening now and the US should do everything within its power to halt it. As far as how Muslim countries feel about 'Palestinians', this might be of interest to you ...
Why Do the Arabs Hate the Palestinians?
For many reasons, the Arab world is not at all interested in giving the Palestinian Arabs a state. The Palestinian Arabs don't really want one either, because why kill the "refugee" goose that lays thbesacenter.org
I was answering your question as to why neighboring Muslim countries don't accept them. The fact is that those countries HAVE accepted them, a ton of them, and it's caused issues for those countries.
But that's not an excuse for the conditions Isreal has the Palestinians living in, that glorified concentration camp breeds terrorist groups like Hamas, the only way to stop it is for Isreal to stop treating those people like dogs.