I think loathing the unemployed (especially if it isn't caused by health conditions and isn't temporary, like in this case) is commonplace in any society. There are many studies which show unemployed people are more likely to commit crimes. e.g. [1]

Unemployed people, by definition, are net consumers. [2] Unless society as a whole actually produces wealth, there is nothing to tax, and the government doesn't have any money to spend. And how does wealth get created without people in employment? Unless you are the country with the reserve currency, which effectively gives you the ability to keep printing money until the world catches up to the con. Which doesn't still change the underlying economics, it is just that at any given point in time there is always some country which will be using the reserve currency status to make it appear like you can create wealth by printing more money.

Aiming for more employment is a net positive to any society, and I think that is what conditions people to loathe the permanently unemployed.

[1] https://www.jstor.org/stable/40057352?seq=1

[2] I remember reading an essay by PG about how getting employment is when you go from being a "net consumer" to become a "net producer", cannot find the link.