I wouldn't use Florentino Pérez' arguments as a particularly key point here. That was part of his justification for the ESL, and essentially saying that people are losing interest in football because there are some teams that can't afford to throw endless money at problems à la Real, and that as the financial crisis and the issue of the pandemic meant that the reckless overspending of the billionaire clubs might actually see some consequences, he needed to protect his own hide to make sure that what has happened in Turkish football with the reckless overspending of the Istanbul teams, because of status and rivalry, leading to a top heavy league that has then collapsed upon itself, couldn't happen to him.
The problem for football is, as a kid, how do you get invested in your local teams and not the three or four big teams per country? This leads to a ridiculously top-heavy league with massively increased predictability. In Spain it's exacerbated because unlike the Bundesliga or the EPL which have TV deals which share out the TV money equally between teams, in Spain teams sort their own TV deals, so teams like Real and Barcelona's position at the head of the table can be perpetuated; they command the biggest audiences so they can get the most lucrative TV channels and prime viewing times, but as a result that means more people get the chance to watch them and become invested in them, and they get more money from the TV deals to spend on signing top players that attract more viewers and making the big European tournaments that draw bigger audiences and get more of your games on TV, and the divide increases.
Last season there was a genuine sense that Real and Barcelona might have to face up to the financial implications of their overspending and it would cost them, so a lot of people quite enjoyed seeing Pérez squirm and contort things a bit, essentially his argument boiled down to "Real Madrid deserve to be handed everything on a silver platter because we're Real Madrid!"
The problem for football is, as a kid, how do you get invested in your local teams and not the three or four big teams per country? This leads to a ridiculously top-heavy league with massively increased predictability. In Spain it's exacerbated because unlike the Bundesliga or the EPL which have TV deals which share out the TV money equally between teams, in Spain teams sort their own TV deals, so teams like Real and Barcelona's position at the head of the table can be perpetuated; they command the biggest audiences so they can get the most lucrative TV channels and prime viewing times, but as a result that means more people get the chance to watch them and become invested in them, and they get more money from the TV deals to spend on signing top players that attract more viewers and making the big European tournaments that draw bigger audiences and get more of your games on TV, and the divide increases.
Last season there was a genuine sense that Real and Barcelona might have to face up to the financial implications of their overspending and it would cost them, so a lot of people quite enjoyed seeing Pérez squirm and contort things a bit, essentially his argument boiled down to "Real Madrid deserve to be handed everything on a silver platter because we're Real Madrid!"