Loyalty is not only noble, but it creates better team chemistry over time and that is a huge advantage over teams that overhaul their teams every season.

Everything you say is true, but what you need to realize is that the success of the team is really secondary. While it is nice to wins games and tournaments at the youth level, it means absolutely nothing at the high school level, kids just want to be seen by college coaches. LE 2023 is the perfect example, they are a very good 2023 team, not the best, and some would argue that they have awful chemistry, but they aggregate a lot of top players and are competitive at good tournaments with lots of exposure (and not a LE parent).