Yes, context matterd and yada yada yada...
I can see both sides of the argument. On one hand, there are clear signs for this being the peak of right wing (protest) populism, on the other hand, Germany‘s position is mainly due to a Chancellor being no-nonsense against the radical right since she personally experienced that side during the cold war. But there are others within the ruling conservative party in Bavaria and the rest of Germany who would like to go more radical. It will not help them.
I can‘t talk about Spain, but in Switzerland, we had that wave starting in the mid-nineties and then peaking around 2013 or so. The right wing radicals have been polling at around 30% here, and my take-away is that the Swiss system of concordance (all-encompassing coalition) kept them out of real power, thereby allowing them to keep their opposition path and their 30% occasionally rising up to 55% depending on the voting issue and how active their opposition is. But if they (mainly the civil society) invest enough energy in fighting them, they can‘t really do anything.
So that‘s why I see both. The clue maybe lies not in a decomposition but in a change our society itself. From a People‘s Party you joined to get up the ranks and where you could have to a degree your own opinions to „service parties“ that cater to the (believed) opinions of the voters in a market of ideas due to the alienization of voters from the political discourse and from political engagement in general. This makes everything more volatile and more populistic and that allows the rise of right wing populists saying one thing and doing another by offering simple solutions.
It‘s a small distinction, but I feel it‘s a sign that everything‘s pretty good at the moment. Without a major crisis coming, nothing will change. Maybe the Climate Crisis will provide this, making the youth more engaged?