Chechens? Maybe. The rest of muslim republics? Nope. I have friends from there, I have relatives there.. Their brand of Islam has nothing to do with wahhabism which is becoming more and more popular throughout the last decade. As for Kavkaz, yea, its your regular jihad site with a twist. They probably agree with you on quite a few things.
I'd doubt the objectivity of your relatives. I know non-Jews from there who hated it in Russia and they fled from maraudering locals in Central Asia, because in their view the people are more cold. It's just different culture.
You tell me that all the pogroms in Central Asia came out of nowhere, I say the feelings of hostility existed before. You rely on the word of your relatives, and I tell you they aren't objective.
I've known many Jews who lived in Russia and would never go to live in Central Asia. They have their own community in Russia. Take the news about the crash of a Novosibirsk-bound flight. There are regular flights that are getting filled with people who shuttle between Israel and Novosibirsk. Just because your picture of the world is limited, doesn't mean that you are right.