President-elect Donald Trump threatened to impose new tariffs on Mexico, Canada and China as soon as he takes office as part of his efforts to crack down on illegal immigration and drugs.
I think he's referring to international citizens using the Canadian-US border to illegally enter, rather than Canadians themselves.
I've heard (through the news mind you) that there is some number of Indian nationals flying to Canada ostensibly for tourism because it's easier for them to get a visa for that in Canada and then walking across the border.
As for the drug use, there is definitely a massive problem going on here, the drug overdose mortality rate in British Columbia was 45.7 per 100k, which is about 50% higher than California (but still lower than a dozen "bad" states)
We just don't have quite as much violence associated with the drug trade, but there's plenty of addicts and overdoses.
Second, Canada on the northern border has become a more accessible entry point for Indians, with a visitor visa processing time of 76 days (compared to up to a year for a US visa in India).