Yaks are isolationists, Dragons didn't really care about ponies, Griffons were just jerks, (harmless jerks) Hippogrifs were friends with the Princesses, and the changelinngs were the only real threat to the ponies before they got reformed, and brought under the new leadership.
I found out that the easiest way to piss off a lot of people is to shoehorn social justice and real life politics in a fictional franchises where they don't belong.