And if they don’t like the debt limit rule they passed a few years ago, they can change it.
But only a minority of the parliament doesn't like it, that's the problem. You need 2/3 of the Bundestag, but even our current governing coalition is composed of parties that are in favour of this strict austerity/debt limit (FDP) or are ambiguous or just slightly against it (SPD)
It's because most of our media and society has embraced capitalism and is motivated by profit, so any rhetoric that endangers bigger profit margins and economic transformation towards a more equal society is inherently against the interests and ideas of the influential actors of society