If you're working on or using AI, then consider the ethics of AI. If you're working on or using global supply chains, then consider the ethics of global supply chains. To be an ethical person means that wherever you are and whatever you are doing you consider the relevant ethics.
It's not easy, but it's definitely simple.
They don't, they just use it as a tool to derail conversations they don't want to have. It's just "Whataboutism".
It's a lot more expensive currently to clothe and feed yourself ethically. Basically only upper middle class people and above can afford it.
Everyone else has cheap food and clothes, electronics, etc, more or less due to human suffering.
Personally, I’m coming around to the spiritual belief that rocks might be sentient, but I don’t expect other people to treat their treatment of rocks as a valid problem and also it isn’t obvious what the ethical treatment of a rock is.