One aspect of this thread was talking about allowing foreign flight instructors work permits in the US. There's nothing complicated or special about setting up a flight school. Maybe governmental regulations in the home countries make it extra hard, but that's a local issue. If the need is so great in these countries, why don't their governments keep the training money in their own country and encourage flight schools to open up there.
Getting light airplanes and maintaining them isn't hard. Setting up a classroom and syllabus isn't expensive or difficult. For primary training, you don't need expensive or difficult-to-maintain simulators.
It seems to me that an Indian or Malaysian, or even Aussie company could set up a great flight school with not much investment and make a good profit by attracting south Asian students and teach in their native language, and be able to charge less than the relatively high cost of living and learning in the US.
I know a lot of Brit students like to train in Florida, but I think that's because flight training in the UK is pretty darn expensive, the weather is less likely to cause delays in training, and Florida is a plane ride away. Also with the extreme weakness of the dollar, the US is cheap for Europeans.