This is so pedantic! Of course people know why they're angry. Of course if you watch TV or read mainstream newspaper they won't give you an idea; you would have to go to the protest yourself to escape the propaganda.
> They even rejected to meet political leaders or have spokespersons for months
And we still do! Nobody can represent anybody else. Representative democracy is the structure that failed us in the first place. Never again: we won't stop fighting until we have a direct democracy without a ruling oligarchy.
> In the end it was a mix
And the climate crisis. And education reforms promising even more brainless indoctrination. And the National Universal Service which is a nicer name for militarist/fascist propaganda aimed at children. And racist anti-immigration laws in which Macron doubled the maximum retention time for undocumented people (45->90 days). And police violence destroying the sense of community in whole districts. And health care workers slowly being pushed to suicide by an administration that wants to close down public hospitals to ensure a new economy for private health.
> no matter why you were upset you could fit in the yellow vest movement.
Except fascists are not welcome. Fortunately they were kicked out of most demos by popular outrage.
> secure nice social advances most of the rest of the world take X0 years to get
The truth is France is far behind much of the world in terms of social advances. It's one of the richest nations in the world, yet has ~10% extreme poverty, and much of the social system is slowly being dismantled... very similar in some regards to the USA.
Burning rich people's shit is literally the most peaceful we can do in times like these, given the pace at which they're killing us.
We deserve better. We can do better. Let's build a better world from the ashes of this unfair and violent society.