OP doesn’t mean
“For some people it’s better to have no job than a bad job”
(Maybe that’s true but as you say it’s their choice to make)
He is saying:
“For society, it’s actually harmful that we paper over the cracks of giving people on the margins of society confidence in how they can economically contribute and get meaning with unsustainable “jobs” rather than society actually being forced to confront this problem”.