The thing people fail to grasp is that football would get disgustingly stale if only traditional clubs with "earned" money were capable of competing. That would completely kill it.
With their incomes, clubs like Real, Bayern, Barcelona, United etc would absolutely dominate forever without having any capable rivals on continental level.
If anybody is concerned about wellbeing of football, than spending caps should be involved, but not based on income. Because that would cement things as they are at the moment those changes are introduced.
Has there been any story recently of a smaller club building up to become a powerhouse, through good, clever work exclusively? Absolutely not.
Leicester won Premier League in 2016, but they are back to being Leicester of older times.
Sevilla were European powerhouse for almost 20 years, in second grade European competition yes, but they never challenged Barcelona and Real Madrid. A few wrong moves and they sunk to mediocrity.
Atalanta have had some nice success, maybe they are the best example of a side growing from their usual level to the next one, but they too have been absolutely limited by their financial constraints, and one wrong appointment this summer after Gasperini leaves, and they are back to square one.
It was never in history of football more difficult than now to reach the top, and clubs like PSG are more of a symptom than cause of problems.
To me, this is all just is sour grapes, because big, traditional clubs, who ravaged Ajax and mid-leagues close to top in 90s, after the introduction of Bosman, did not cry back then about how football is getting eaten alive. And it was getting eaten alive for a big chunk of European clubs and leagues, making sure they will never be competitive again.
So solution is not to "kill" even more competition by cutting out PSG, City and similar clubs, solution is to cut all the heavy spenders out at the same time. So naturally, when bigger number of clubs can spend the same, or when their spending is at least approximately closer to each other than it is now, then the competition grows.
Otherwise, every league will eventually turn into two horse race at maximum. That is a natural progression, with or without state-funded clubs.