Because 99% of Asians in comics are ninjas, it's ridiculous. In fact, the characters you mentioned are pretty much the only semi-prominent ones who aren't. Marvel should've pushed them more instead of relying on the tired stereotype again. It's not Betsy's fault these characters were sidelined. That's entirely on Marvel, just like the whole body swap fiasco is on Marvel. The character is not responsible for the company's racist decisions.
Because she's benefiting at the expense of my favorite character, obviously.Why shouldn't another character benefit in the same way?