This thread is not about Ukraine, but, if we must ...
The protests in Kiev and other cities were violent and out of control. Ukraine was 6 months away from an election which they could have normally voted out their president, but, the people overthrew the government instead. Since then, the country has been so much worse off economically and socially. People have barely any money to pay their gas bills or buy luxury food items such as almonds. The GDP is currently one of the lowest of any countries in the world.
Other regions in the country such as the Donbass also never wanted to overthrow their president, which is why they began their separatist movement which led to its current civil war.
Crimea got a lucky break that it had the history that it does, and that all the Russian speaking population was there, and that there was Russian military presence there to enforce peace.
Maybe pre-sociology shows 38% pre Ukrainian protests in 2012, but, a lot changed in 2 years during that complete anarchy in most Ukrainian cities such as Kiev, Odessa, and the atempted Anarchy in Donetsk. The people of Crimea very simply just want stability and peace, like most people do.
> 97 percent vote for integration of the region into the Russian Federation with an 89 percent voter turnout.
https://en.wikipedia.org/wiki/2014_Crimean_status_referendum