Wrong. Islam fights against everything that isn't Islam. Evil is evil, even if it kills other evil things. since it's no longer of any use killing other evil things, it should be destroyed.
You are full of crap.
Sometimes tough decisions such as this need to be made, as we find ourselves faced with a choice of supporting one evil or another when thoese two are in opposition. President Reagan had the wisdom to prop up Hussein in the 1980's to blunt the reach aof the Ayatollahs. Setting them up to bea each other to a pulp was in our best interests, even if we would have otherwise shunned a thug like Hussein.
Let's look at the present; al Qaeda affiliated thugs vs. Communist China. Are we better off aiding China crush their dissident/separatist problem, or stand aside and let them have to deal with it on their own? I certainly would never advocate aiding and abetting the Uighurs, but at the same time I see no reason to actively hinder them either.