"Why do people say Brazilians and other foreign women are better wives then American or Western Women?"
As a general rule ... and we have to generalize for some things ... they do make better wives. More American and Westernized first world women have accepted the post second wave feminist radical notion that women are men.
Now, when men are looking to settle down and marry, they are looking for a traditionally feminine COMPLIMENTARY woman and not an equal "partner." But most Western women that have accepted feminism ultimately seek power over love, career over family and worldly achievements over family and hearth.
Very often, this idea begins as the "choice" to have themselves become self-reliant and in full control of their own destiny. That sounds like a good thing... full independence of men. But one could argue about how it changes society in a negative way. Imagine if every boy was now raised with the idea embedded in his mind to save for a artificial womb in order to remain independent of women ... because "one can never trust a woman". This kind of thing changes the social dynamic in a negative way ... no?
Most Westerners, both men and women sometimes don't realize how far off the traditional path we have swayed until they travel elsewhere ... then suddenly it becomes very obvious. Up until now it has been mostly women that have been the targeted victims of social engineering, through feminism, that have accepted the radical change ideas. Most men still push back, or say nothing, but do not accept these unnatural, radical social engineering ideas. But MRA's and MGTOW's are on the horizon. So we could be changed forever if we don't abandon these groups like feminism, fast! .