What are you talking about? You're talking about something else altogether. And should black people have been pleased when white performers dressed up in blackface and sang their songs in minstrel shows? Should they have been pleased when there were White Only radio stations? Should Indigenous people be pleased that the government both wanted to learn their culture but then wanted to eradicate it?

If you can't tell what offends some people and what doesn't, you should just stay home. I doubt Stratford is the place for you. It's not all right to tell people whose culture has been appropriated that they should be grateful as if being robbed lets them know they had something of value.