[Imported_Aussie]

I work at a University, and can say that yes, in Science-based programs, and also in Economics, we see a large number of Asian-Canadians and Asian immigrants in these programs.
I would also like to point out that these students, especially the immigrant Asians (many of whom apply for visas to work in Alberta after they graduate) are some of the nicest, friendliest and most appreciative students we see on campus.
The one drawback is when it comes to admission to graduate level programs. As these Masters students are the next group of teaching assistants, and PhD students the next instructors, if these students lack a sufficient command of English, this weakens the level of instruction provided for incoming undergraduates. That is the only drawback I see with an "influx of Asian students" - and is easily remedied by Universities taking some initiative, to set higher English requirements for admission to graduate programs, and to look for rounded PhD candidates, not just the highest GPA

As an immigrant myself (albeit from another commonwealth country in Australia), I feel that you give these people a chance, as often they want it more and work harder to get here and stay here.
If more Asian families value education, and their children are more likely to get into university as a result, then perhaps rather than setting quotas (affirmative action is no more than a band-aid), shouldn't we all take the lead and promote the importance of education to everyone?