Imo “backyard eggs” are really small potatoes, especially when like 98% of eggs globally come from factory farms. But even in that case, egg-laying hens are basically bred to suffer. They lay an egg every 1-2 days, compared to like once a month in the wild, which takes a huge amount of energy and nutrients. And we’ve bred them to produce eggs too big for their bodies, so that even when they’re treated really well, the vast majority of hens have bone fractures.

That’s why animal sanctuaries will usually either feed the eggs back to the hens, or give them medication to stop them from laying at all.

Of course, this is on top of the fact that 100% of egg-laying hen breeders, everywhere, kill the males shortly after birth because they can’t lay eggs. See this for more information.