This comment is not meant to reference any person or discussion in particular, as it concerns a general pattern in many discussions I have seen both on this forum and on other websites. I was inclined to post it in the thread
Royalty/Nobility and Gender, but will rather post it here in case my interpretation is disputed.
It appears it is much more socially acceptable to criticize a female royal's choice of spouse than to criticize a male royal's choice of spouse. In discussions on the appropriateness of a princess's choice of husband, or about third parties who may disapprove of her choice, it seems posters are free to suggest the princess should not marry him or should accept the negative consequences for marrying him, without facing backlash for their views. But in discussions on the appropriateness of a prince's choice of wife, or about third parties who may disapprove of his choice, posters who argue that the prince should not marry her or should accept the negative consequences for marrying her are typically in the minority and are often subjected to severe rejoinders (including accusations of being medieval, misogynistic, racist, etc.), even in some cases when the bride is unpopular or has a checkered past.