Well, do you like everyone you meet? Why expect everyone else to?
You can make the world’s best apple pie and there are still people who don’t like apples. That’s not a flaw of the pie or them. That’s just life.
I wouldn’t say you get over it, more that you get used to it and realize that it’s not (always) about you.
I think what will hurt worse is that the genocide is still talking place and his sacrifice didn’t move the needle as much as he would have expected.