Prime Minister Justin Trudeau’s government is introducing new measures to tighten standards on colleges, responding to criticism that Canada’s education sector is bringing in so many foreign students that it’s boosting pressure on housing and the labor market.
Anything we export technically “drains those source countries of wealth”
That’s how exports work. You can’t import something without paying for it.
At least in this case some of them return and add value to their home economy by having better education than is available in their home country.