Then you can understand my feeling when I visit a holocaust museum and find that it omits half the victims of the Nazis or barely mentions them.
If by 'understand your feeling' mean, 'have no sentiments about it at all'...then you're correct. Because that's my sentiment.
And I think you're lying again.
The US Holocaust Museum contains entire sections devoted to non-Jews, non-Jewish resistance etc. The one in Israel, Yad Vashem, refers to it as the Shoah. "Shoah" refers to the Jewish deaths only (during WWII, before and after), Hebrew doesn't even have the term Holocaust.