I agree with your analysis. Those unfamiliar with history are ignorant of the undercurrents which drive this situation. They post nonsense such as “Crimea was part of Russia until the 50s” without knowing the context, method or meaning of Russia’s presence in the area and what the “Russian Crimea” really is.
As you pointed out the Crimean people care most about the local tourism industry which they all put aside their differences to make a go of. If one ethnicity starts taking sides and supporting external interests and occupation then the whole thing unravels and everyone loses. Yes, I agree Putin will be blamed all around for “losing Crimea” in one fashion or another.