Is it really fraud though, when 2 individuals are willing? I mean, it doesn't say "true love required" in the law.

I know of some couples who are in situations that I would say are even shittier than these sponsored visas. For example, a husband has to pay literally every cent he earns to the wife and kids, leaving nothing for himself and he's going through life in misery. Or the other way around, deadbeat husbands who live off their wives' earnings. Most of these couples have no love left between them. They practically hate each other, each one rueing the day they started their relationships. Yet they're still married. Would you call them fraudulent as well?

I guess what I'm trying to say is it's a very blurred line and it's no wonder people try to game it and the Gov has trouble exerting control over it. Almost every desirable destination has a green card program and all of them get gamed to some extent.