Inter-cultural relationships stand to achieve an array of benefits.
First, it will reward good attitudes and good behavior. Men from cultures in which men are good to women and women are bad to men will get together with women from cultures in which women are good to men and men are good to women. This will reward good attitude and good behavior with good relationships.
This good attitude and good behavior will not only be rewarded; they will also be incentivized. The offending gender in each situation will have a real-world reason to improve their behavior – or else see the other gender leave in large numbers to be with people who are willing to treat them right. This will result in cultural improvement.
Cultural improvement also stands to be realized by introduction of better attitudes from abroad. A man coming from a feminist culture to a misogynistic culture will bring with himself better ideas about how to treat women, improving that culture. A woman coming from a misogynistic culture to a feminist culture will bring better ideas about how to treat men, likewise improving that culture. In both cases we will see cultural improvement through introduction of better ways from abroad.
Intercultural relationships also stand to do a lot toward peace and reconciliation between cultures. Countries whose citizens intermarry in large numbers are less likely to go to war with one another. The lovers will not only be doing the right thing by themselves; they will also be doing the right thing for the world. They will improve relationships between their countries. And that will be good for everyone.
I have two Western friends – one from England, another from America – who are married to Russian women. They both say that their relationships are great. Neither one of them is a misogynist, but both have been at the receiving end of ugly behavior by feminism-influenced women. So they have found happiness in relationships in which they are giving someone good from another country a chance at a better life and give themselves a chance at a better life by being with such a person.
I recommend intercultural relationships as a cure for many ills at once.