Will there ever be 'peace in the middle east? '?

It seems like some of those countries do ‘better’ when they have a tyrannical dictator. From what I have read about Iraq during Sadam Hussein’s rule, it sucked. But at least there wasn’t all out war , all the time….
Did America yank the thread that is unraveling the sweater , or would they have always had wars going on with different groups/ factions? Was ISIS an inevitability? Did America make a mistake by trying to develop a diplomatic relationship with iran? Now Saudi Arabia is mad at the US. They used to be a close ally.
It seems to me that the region is full of people who hate each other, and have for centuries, or more. From what I’ve read, the people aren’t even really that different. Small differences in their religious beliefs have been plenty reason to kill each other, and they have like, Sunni and Shiite problems that are spread across the region. Those two groups alone, seem to not count each other as equals. How can a democracy, forced though it was, work if people don’t think other people have the same rights as them?
What a mess. Any end in sight?