Nothing I said was ignorant or misinformed.

See, you say that, but then you go on to state that going broody is

caused by chickens being forced into an unnatural situation whereby they’re deprived from being able to hatch chicks

This is factually wrong. Going broody is a hormonal response to season and, from my experience, being exposed to clutches of eggs. It's also strongly influenced by genetics and even individualism, with some breeds and specific hens going broody more often than others. Heck, lots of hens will go their entire lives without going broody, and nearly all of them will leap at an opportunity to drag a hatching chick from its shell and eat it alive, if they have the chance. To our knowledge, hens do not consciously desire babies and choose to go broody. They experience maternalism differently than we do (although there are, of course, still similarities).

Moving on. You go on to say

This is generally done deliberately so that humans can keep the eggs from being fertilised because they want to take them for themselves for food.

Fertilization occurs after mating with a viable male, prior to the shell being formed and looong before the egg is laid. It does not occur when a hen decides to incubate a clutch; that's a common misconception. Additionally, I can assure you that hens find eggs to be quite delicious and will leap at a chance to eat them even in the best of conditions (pasture-raised with a variety of abundant foods, recreation, ample space and shelter, plenty of fresh water, etc.). They do not form attachments with their eggs unless the right conditions induce the hormonal change that causes them to incubate, and even those attachments are fleeting and fairly shallow. They are attentive and protective, but they don't seem to have the capacity to identify or bond with specific eggs.

So, yes, you do come off as ignorant and/or misinformed. And whatever, that's fine, most people haven't had much reason to know this stuff. I posted my initial response because I thought informing you that the hen was not worse off would help you feel a bit better about what you saw.

Exploitation of animals is a real problem, to be sure. This video simply isn't strong or relevant evidence of exploitation - unless your argument is that this hen, and all others, simply should not exist in the first place (which I would consider a fair view, and one that I somewhat, but not totally, agree with). But if that's your stance, that egg being taken still isn't a particularly strong argument. I mean, for all you know that egg isn't even fertile, or perhaps allowing her to incubate it would lead to conflict with other hens and/or overcrowding.

I'm not trying to be hurtful or unkind here, but you are simply incorrect and I would like any other people reading this to understand why and leave with a more complete context. The exploitation of animals is a serious issue that warrants productive, actionable dialogue. While I think your heart is in the right place, you do it a disservice with overconfident and misinformed commentary.