This is the chief reason why Canada's egg prices have remained sane while the US has exploded. It's not like we don't have bird flu here and we haven't had culls. We just have smaller flocks.
https://www.cbc.ca/news/canada/egg-prices-avian-flu-canada-u...
Still, backyard chickens are a hobby, for if you like chickens. It will always cost more than an egg farm.
There was some move some years ago here in Ontario to push for a small flock exemption to allow for egg & pooultry sales outside the quota system for flocks under 300 bird. And I don't mean roadside sales, but market sales. So there has been some accommodation for smaller market players.
From what I understand there is no path for the small flock program to get from 300 birds to full up full time. I'm sure 300 birds/year is still hobby farm. Nobody is earning a living on that.