It is interesting to find that many people and cultures lived in the area of Transylvania and lived in relative harmony.
At the same time, people still felt that their culture was stronger or better or whatever.
So, for many years the Romanians of the area faced persecution. When they came to power after 1918, they took away land and power... only to have this happen to them in 1940.
This caused great pain for everyone. People fared worse and not better since by doing such things the people who farmed and did not have "power" now found more ways to feel pain.
Why is that?
A matter of Pride.