What are the Russians going to do? Build a massive mosque (Akhmad Kadyrov Mosque) like they did in Chechnya or install sharia law? Russias muslim population is about 12%. In 2030 its going to be about 15%. Within a few years, muslims will make up half the conscripts in the Russian army.
The Muslims (Tartars) have been there since the 8th century. I believe there are only 5 mosques in Russia. We have more churches in our little Town.