As someone from Australia, which hasn't shut its self off from the China EV market. I drive a BYD Dolphin. You should be worried. They are cheaper, and more full-featured than European equivalent. They aren't junk.
Also, they aren't the only big player from China. Australia is soon getting GAC/Aion, Geely, Jaecoo, Leapmotor, Deepal, Xpeng.
Here is an article if interested. https://www.carexpert.com.au/car-news/which-chinese-car-bran...
Does Australia ask manufacturers to setup factories locally? I always think it's a good idea for employment and perhaps technology transfer. I don't know why Canada is not doing that. Getting a couple of big car factories could be huge for the locals. That's thousands and thousands of employment.
Australia had a domestic car manufacturing by Ford and GM - popular V8 rear wheel drive sedans on their own platforms but the govt decide to stop protecting the industry and Ford and GM was also not willing to invest money in manufacturing is such a low volume market and little export potential.