Ummm, Crimea has been majority ethnic Russian for over 100 years, Ukranians weren't even the dominant minority in the region for most of the last two centuries. You really should learn some history before commenting
Lol you completely ignore the fact that the Ukraine as a country did not exist until 1991, and the only reason Crimea was made a part of the Ukraine after the dissolution of the USSR, is because of a fluke of history whereby Crimea was transferred from the Russian Soviet Federation to the Ukrainian Soviet Federation as meaningless token in celebration of 300 years of the Ukraine as a part of the Russian Empire.
Prior to Russo-Turkish war Crimea was a part of the Ottoman Empire, after Russia won that war it conquered Crimea and absorbed it into the fold in 1783. Crimea has not been a traditional part of the Ukraine since before the existence of the United States of America.
Failure to grasp reality does not change the fact that a Crimea filled with ethnic Russians, host to Russia's Black Sea Fleet, in a city founded over 250 years ago by Russia, which holds extreme strategic importance to the nation could never be allowed to fall under the sphere of NATO.
And I completely deny that Russia has the right to speak for ethnic Russians of other nationalities, and to invade their countries on their behalf.