I think this really goes back to whether the man and woman in question are quality or not. Cheating is also a massive problem in South America and Asia as it is so in that sense what's stopping her from getting railed by Chadriguez or Chang in a different country? On the other hand I know of guys who brought their wives back to their countries and they're doing well.
This is why being above her SMV level is very important for LTR even if guys are always aiming for the hottest women. If you're a 5 and you're bringing back some young 7/10 who you can barely have a conversation with due to language then yeah things are going to get iffy.
Well, if you were going abroad, you weren't quality in the first place. How else do you spin it? Most of the people here are beta hive workers realizing they could clock out, and the rest are some trust fund kids or something. Even if you were good looking, you went abroad to a third world country for some deficiency back home. Autism or something, you weren't quality in the first place.
In LDCs, the average guy has more power over women. Especially in South America. Your wife cheats on you? Well, this isn't the West were I have no physical, social, or economic leverage over the nearly lowest woman. You can just enter the dating pool and find a new girl, just within a week I bet. I know from personal experience I can. I bet most of my assets would be protected from divorce too, if they were kept in the US at least. (Could be totally wrong on this). I think the biggest deal for me isn't even the cheating, its the possibly of having my financial aspects destroyed because a girl wanted to on a whim. Which they certainly can in the US.
Also, going back to kids, having kids is already an issue in Western countries as stated above. Your kids (male) are going to face the same issues you did, but 20x worse in 20 years.
I'd go over things that could happen too. Even if you don't have a divorce, you could end up with a fat spouse, a dead bedroom, or somebody is going to have a personality switch once she is comfortable.
My mom's octaroon father married a woman from Germany. They stayed together till they died*.
*Catch being is she is a massive fucking bitch who verbally and psychologically abused an old man who could barely walk, and dumps her frustrations out on anybody. Her grandchildren, husband, and her own kids. She happened to have a massive personality change when she came to the US, according to him.
If you want to risk it, go ahead. I am never getting fucking married.