They'll keep trying until they succeed - I think that a couple of club presidents (Real Madrid and Juve) have even stated this outright. For English clubs, there's little incentive other than to fill their pockets will even more money. For the rest of Europe that don't get the same kind of TV revenue that the Premiership generates, they want need to try to level the playing field.

I wrote a post on another platform some time ago about the shocking gap between the "Big 6" and the rest of the EPL as far as revenue and therefore spending power goes. By using the prize money for the 2019/2020 season (I'm aware it's the season after), we can start to see why "the big 6" is unlikely to change.

I crunched the data myself so it's a little crude but clear nonetheless.

I used to go and watch live football every week but it's increasingly not the sport that I fell in love with. I think I'm more likely to go and watch a non-league match these days (my local club now being Eastbourne) and visit any grounds I've not yet visited (Luton away on the last day of the season).

It's hard to say that the European Super League will kill the domestic game when the Premier League has pretty much already done that.