Someone is going to have to define, a little more explicitly, what a mail-order bride is, since the actual catalogues which inspired this term haven't existed in 2 decades.

Meeting any partner who isn't currently a US Citizen if you are is abusive? Meeting any partner who was born of lower economic status than you is abusive?

I'm an American man engaged to a foreign woman and am familiar with all of this - including negative stereotypes of cross-border relationships that in any other area (race, gender, orientation) would long since be considered deeply bigoted and unacceptable.

Yes because its human trafficking.