"Removing history from a school because you do not like the bad parts being shown is whitewashing"
That would Whitewashing
"The bad parts that where shown in the mural, it is not a statue, is the history that is generally not taught in the history books"
Oh Mural. Still I am sure that information was not only stored in Murals
"and why I mentioned propaganda."
Perhaps you should just research it yourself. I know a lot of History is left out, simply because there is so much of it. It might not be taught at school, but it probably exists in other places
"Thus regressives are whitewash history and promote the official clean version over the truth because they "feel" that showing the bad parts is promoting the behavior rather than criticizing it."
Uh huh. Yuuuup. Definitely.