That's a reasonable take but I would ask you are you really entertained by the likes of Eche and Getafe playing out a 'technical' bore 0-0 draw?
In La Liga the bottom ten teams score less than a goal per game - whilst the EPL is well over a goal per game, sure goals aren't everything but they do help. .
"LaLiga dominated Europe from 1999 to 2018. It won the CL 11 times compared to the EPL 5 times"
That's a highly questionable statement, Real Madrid and Barcelona certainly dominated the CL wins, no question, but in the last twenty years England have overtaken Spain in total club coefficient points and right now have three teams above any La Liga sides, with another 3 in the top 15. Spain's sixth ranked team is down at 38.
To try and argue 'depth' based on a couple of games when there are coefficients going back years only weakens your argument. The numbers don't lie, the EPL has caught and past La Liga both in top clubs and certainly in depth.
That doesn't mean you can't subjectively believe La Liga is more entertaining, of course you can. However to pretend that the EPL is not now head and shoulders above it's rivals (and yes it's all down to money) ... not sure you've made that argument.