I think when it comes to Asians, a lot of them are from outside the USA. If federal and state money is going into public universities and colleges, we could say a certain percentage of the slots have to be from the USA. For instance if you have an engineering program and 9/10ths of them are foreign Asian students, then there is something wrong.
Not happening. With perpetual budget shortfalls plaguing universities international students are a gold mine for US colleges.
