Massively simplified I would say it mainly boils down that basic needs aren’t fulfilled anymore. Increasing costs of groceries, rent, public transport, healthcare and taxes to name a few meet decreasing investments (monetary and political will in general) in infrastructure, social housing, healthcare, pensions etc.

So neoliberalism, basically.

And the bloody Austerity narrative, which has been strong in Germany at least since 1990 (Wiedervereinigung).

But it’s not just the three countries mentioned in the headline, and it’s not a new phenomenon.