In the US (likely same for Canada), livestock farmers are given huge subsidies. What a farmer pays for corn for cows is much less than you would pay to buy corn

In the US (likely same for Canada), livestock farmers are given huge subsidies. What a farmer pays for corn for cows is much less than you would pay to buy corn, after accounting for the difference in quality, because they get tax subsidies. So it's actually central planning (socialism) that is making plants more expensive than meat.