I don't entirely get your point, so I'm sorry if my comment is not related, but this has happened before.

In the 1980s, during the Lebanese civil war, the US under Reagan blocked Lebanese immigration, which led many of them to Canada. I believe we took in tens of thousands.

As a teenager, ignorant of this, I never understood why we had so many Lebanese restaurants and other businesses (Japanese and Chinese were literally the only other "ethnic" cuisines). I have no idea how their experience was compared to the Syrians in this article, but I know they have thrived, maintained their culture, and contributed greatly to our country.

As other comments have noted, Canada is far from perfect, but I believe as a whole we have embraced pluralism as the path to success as a nation.