I'm sure that diversity/inclusion/other types of bullshit sound very much appealing and cute and awwwwwww...
However, there's one big elephant in the room no one wants to acknowledge - by ditching your own cultural heritage, you're saying goodbye to all other values of Western civilization that you're enjoying and taking for granted.
Likewise, by importing other cultures and their heritage, you're importing their values as well, which I will not elaborate here in detail.
Good luck with that.