"a lot of people hate and persecute gay people, where's the gay state? would they have the right to one if they fought for it?"
Yes. I've said previously that I think all groups should have a state, the inherent and admitted weakness of which being that you're naturally going to split hairs at some point and ask "What about the Cotton Knitters of America, THEY'RE a group, where's their state?" ;)
Leaving absurdities like that aside, however, I would say that, in a perfect world, there would be at least one state where one wouldn't have to be the minority and would thus enjoy the security of the majority. That's not to do away with multiculturalism, which I love, or the mixing of peoples, which I likewise love.
In that perfect world, there would be room enough for both mixing like we have today and states such as Israel and a theoretical Palestinian for the Palestinians or Kuridstan for the Kurds.
Racial and ethnic/regional tension is also a factor. It's extremely tense between Sunni and Shiite Muslims...Sunnis would be incensed if all Arab states were ruled by Shiites, and vice versa. They each have states where they are the majority and thus need not fear other cultures which may have centuries-old grudges persecuting them. Ditto the Jews, Palestinians, and other neighboring Arab states. You can point to times where things were "better" or "worse" under the rule of one power or another, but on the whole, it's fair to say a people will govern themselves more equitably than a foreign culture wherein they are "the other."
The options then are to eliminate "otherness" (which is good and can happen, and should be a go-to, and is often in the West, but I'd submit that the Middle East is so explosively entrenched right now that this option isn't going to fly there any time soon) or at least do the best to ensure everyone has at least one "safe zone" to be...
And in places like the Middle East, safe means NOT being in the minority under a group with a different ideology and centuries or even millenia of history against you to fall back on should tempers flare and things get ugly...or, in other words, what the Middle East knows as Monday to Thursday.