I've become aware lately of a (renewed) trend of verbal attacks against transracial couples.  Commonly, a white man will be attacked for having a minority girlfriend or wife, as a "shield," or some other morally corrupt crap.
When transracial relationships were less common, this was the venue of a few clearly backward social conservatives.  Now, it's not only in vogue with alleged liberals, it is extolled.
The perpetrator is almost always either single, or in a cisracial relationship, usually white, yet claims some kind of moral authority to place themselves above the transracial couple.
It should be obvious why this is wrong, but I'll explain anyway.
First, if someone is involved transracially and you're not, you hardly have any room to criticize them at all.
Also, this isn't 1950, and those relationships are normal, as they should be. See above. WTF is wrong with you?
Second, your implication is that the only reason a white person is involved transracially is for some sort of dominance game over "lesser" races.  And if that's what you think, then that puts you right there with the people who claim being gay is a "choice," thus admitting they've thought about it.  You're flat out admitting that's what YOU think about romantic involvements with other races.  IOW:  You're a huge fucking racist piece of shit.
Third, your attack impugns the mental and emotional competence of the minority partner. You're stating that they lack the ability to identify racism, or escape from it, and are some sort of helpless prisoner. Now, there's no reason to believe this is any more common among transracial couples than cisracial. You're demeaning the minority member.  IOW:  You're a huge fucking racist piece of shit.  And, since such attacks are overwhelmingly addressed at couples with a white male and minority female, you're a huge fucking sexist piece of shit, who doesn't believe women can make rational decisions for themselves. You have the conceit to believe you know their partner better than they do.  Wrong.
Fourth, in many cases, there are children from these relationships.  Your implication is that these children are somehow less worthy than cisracial children. Hearken back to the medieval practice of referring to out of wedlock children as "bastards" and blaming them for their parents' actions. That's exactly what you're doing.  You're heaping your racism onto innocent children, and maligning their parents in front of them.
If you see a transracial couple and find flaw with it, you need to remember these very simple facts:  They're probably not racist. You almost certainly are. And you need to shut your racist fucking mouth.