Of course they are. The entire world is cashing in on our real estate market and leaving Canadians out in the cold.
I used to be a mortgage broker. There are Chinese monoline lenders that exclusively lend to students/immigrants; and do not require income verification. Meanwhile down payment verification (making sure the $ wasn't illegal etc) is ridiculously easy to get around. So that means when it comes time to debt service the mortgage, Canadians are at a huge dis-advantage because foreign buyers using those lenders can essentially bypass debt servicing entirely.
If those foreign buyers default than the property belongs to the bank, aka the chinese government.
I've got nothing against people moving to Canada to become Canadian. But foreign governments are using Canadian real estate to park their money and it's hurting Canadians; including immigrants.