The kind of Brazilian that goes in for those surgeries is under nourished, under weight, thin frame, and is paid for by porn studios to deliberately look like that, especially with no frame of reference to see him against anything but another man. He's naturally 5 foot 4 and weighs 100 pounds.

American trannies usually are beef and cheese fed 6 feet tall 190 pounds at minimum, and either northern European or African. With his dog walker salary and drugs bought off of reddit, he thinks that all he needs to do is get castrated, take some hormone supplements and grow his hair out and he'll be naturally beautiful. The difference comes down to being naturally masculine vs having zero illusions of femininity.