I really wish people would stop shilling austerian visions in the name of ecology

Who is doing this exactly?

In France, there is the extremely marginal Parti de la Décroissance, who have interesting ideas but zero influence or electoral appeal.

Other than that?

In any case, the notion that frugality is a virtue, and morally better than disposable consumption, seems almost too obvious to discuss. If this is what you assimilate with "austerianism", then I suggest you have Klein bottle syndrome.

_{It is rightly acknowledged that people of faith have no monopoly of virtue - Queen Elizabeth II}