Suggestion for Jason

Hey Jason, I know what you are trying to do, what with requiring Mexicans and Czechs to have a visa to get to Canada, but you are going about it the wrong way.

I do not often offer advice to Cons, unless I am suggesting that crawl back into the holes from whence they came, but I will break rank by offering some to Jason Kenny, Minster of All Things Not Yet Canadian.

Rather than imposing visas just prohibit all direct flights from Czech Republic and Mexico (except charters that were booked from Canada by Canadians).

That would mean that the "refugees" would have to route through another country before they get to Canada.  Then you can deny all of them entry because they should have sought refuge in country they flew through or from.

Don't say thanks, Jason.  Just leave town.