If you mean unified statistically, Russia has far more Muslims than any EU country (soon to be national majority among the young people), as well as the biggest mosques (including the biggest temple in Moscow), federal blasphemy law, actual Sharia law regionally, and now an armed international jihad sponsored by the central government.

If you mean unified together, they've had a savage religious warfare not long ago, and while the man who literally declared jihad on Russia and called all Muslims to "kill as many Russians as you can" was later declared a Hero of Russia by Putin (and his son now leads the jihad against Ukraine) they may still revert to this state of affairs or worse.

If you mean unified statistically, Russia has far more Muslims than any European country (soon to be national majority among the young people), as well as the biggest mosques (including the biggest temple in Moscow), federal blasphemy law, actual Sharia law regionally, and now an armed international jihad sponsored by the central government.

If you mean unified together, they've had a savage religious warfare not long ago, and while the man who literally declared jihad on Russia and called all Muslims to "kill as many Russians as you can" was later declared a Hero of Russia by Putin (and his son now leads the jihad against Ukraine) they may still revert to this state of affairs or worse.