I answer you late, my computer playing tricks on me ...
I do not see how the right has benefited so much. Unless your right comes down to the very big fish
By increasing purchasing power, which has benefited all major players in the economy, in accordance with Keynesian theories.
Obviously, it was the "bigger fish" that got most of this advantage.
Regarding taxes, what you say is true applying to the middle classes, not to the most fortunate who have many means of escaping these taxes (resume, if you have the patience, the whole of the evolution of tax texts of the time; good luck!).
You say :
The end of growth would imply going out of materialism, which would imply a massive reintroduction of spirituality
What about the death penalty?
It does not matter, basically, these little details about which it is possible to chat endlessly and quite vainly.
The important thing is to understand that the propaganda on the ultra-liberal austerity measures for which you are the spokesperson are totally inept; they have only one reason to exist: in the very short term, they are those which allow to maintain the advantages acquired from the oligarchy. It is therefore important that this message be relayed by the media-money to those who believe or hope to be part of it one day!
Ultimately, this policy will be catastrophic for everyone, but we are living in the short term and imagination is not on the agenda ...
Of course, the reverse policy would be powerless to restore a previous situation that seemed to satisfy many: times have changed.
China, which arouses envy or jealousy, is slowly sinking into its contradictions. The capital gains that no longer take place in Europe manage to survive there because of extreme poverty and the creation of fictitious-real value * comes at the expense of the real wealth of air, water **, raw materials, bio-diversity ... (not to mention human problems!).
Here in Europe, it is only a question of appropriating the old distribution rents of the middle class ***, predation also in the very short term ...
* The value is fictitious since conventional, it only measures the state of social relations; it is also real, in the sense that it measures them, not fictitiously, but in a binding way.
** There are 22000 rivers that have disappeared since the start of industrialization in China, even if this figure suffers from some approximations, the cause is the drying up of aquifers by pumping (extractivism!).
*** Everyone is trying to arrange a new distribution in their favor of a residual, inertial value, which is no longer renewed.