Do you even hear yourself? Making a "pilgrimage to SE Asia" to procure himself a wife? He has ALL the power in that relationship. Her visa depends on him, she will have no income of her own, no support system (leaving her home country, family, and language behind)! When a man goes to a foreign country for a wife, the age issue is compounded exponentially. These men, having felt "neglected" in their twenties, want to feel powerful and be in control. They want a "submissive" wife who won't complain because he has given her the "opportunity" to come to the west or whatever. That's a disgusting power dynamic.
Men who seek younger women aren't looking for equals, they're looking int increase their own status and power. That's true even when they don't go abroad.