It's hard but even small efforts help. For me the hierarchy kinda goes like this:
- Canadian company
- Non-Canadian, non-US company
- US company franchised/operating in Canada
- US company operating in the US
I aim for number one, try to avoid number four, and the two inner ones are a little more loosey-goosey for me and will depend mostly on the individual product. There are some things we just don't produce here so... I just do what I can, where I can, and don't feel guilty if there's an American product I can't replace (ever/yet).
I wish my grocery stocked it. I buy Earth's Own oat milk though.