Why are people on the internet (and Lemmy) so quick to say someone "deserves to die"

On so many different news items, threads, etc. People are the first to claim pretty much anyone who has made a mistake, or does something they disagree with deserves to die.

Like, do some people not have the capability to empathise and realise they might have been in a similar place if they were born in a different environment…

I genuinely understand, you think a politician who has lead to countless deaths, a war criminal, or a mass rapists deserves to die.

But here people say it for stuff that falls way below the bar.

A contracted logger of a rainforest (who knows if they have the money / opportunity to support their family another way). Deserves to die.

A civilian of Nazi germany of whom we know nothing about their collaboration/agreement with the regime. Deserves to die.

Some person who was a drug dealer and then served their time. Deserves to die.

Like I don’t get it? Are people not able to imagine the kind of situations that create these people, and that it’s not impossible to imagine the large majority of people in these positions if born in a different environment?