What I said was this was a way DA clubs without ECNL could offer a product to keep players in house that didn't make the DA team especially since DA has combined age groups. I stated their intentions were to create a league and a platform to offer players an alternative to ECNL. I guess I am a bit confused why this league is so upsetting to you? The clubs that formed it saw a need to compete with an existing product ECNL that was superior to the status quo CSL and SCDSL and this was their answer. Just merely staying in CSL or SCDSL was obviously not the right direction for these clubs to compete against a proven ECNL product. You can argue the reality of where that competition is and so on but your question was why form this league and that I answered. Just for the record my daughter doesn't play in the DPL league.
It seems you are saying the intention of the 9 So Cal DA/DPL clubs in forming DPL was to help put a better DA product on the field. If that's true, then DPL doesn't seem to have served its purpose. Based on the goal differential analysis I did earlier (in a separate thread), the median DA ranking of the 4 DA/ECNL clubs in So Cal is 15.5 (out of 69 DA clubs nationally). By comparison the median DA ranking of the 9 So Cal DA/DPL clubs is 44 (49 if you take out Legends and Beach). Further, there are 46 DA clubs in the country that have neither ECNL nor DPL teams, including 3 of the top 10. So it is not like it was impossible for the DA/DPL clubs to operate or succeed without placing their B teams in a closed league.
This is not a matter of just picking which league works best for my daughter's situation. Imagine if your cable company (the only one that serviced your area) suddenly informed you they would be splitting their channel line up into two different packages (one with the odd numbered channels and the other with the even number channels). And imagine if they forced you to pick one or the other (you couldn't chose both). Wouldn't you be upset that you no longer had access to all your favorite channels? Maybe one package would be somewhat better or worse for your situation, but you are still worse overall.
This is why, as a consumer of club soccer services, the formation of DPL upsets me so much (and why it should upset the parents of the DPL clubs too).
Of course, this wouldn't be as much of a problem if all the best non-DA/ECNL players suddenly moved to DPL. But I see no indication that happened or has any prospect of happening.
As others have pointed out, this is a business. It appears the So Cal clubs that were lucky enough to be granted a DA franchise rushed to gain the maximum competitive advantage from that fortuitous development and decided (wrongly in my view) that colluding to form DPL was the best way to do that. They were also likely enticed by the fact that there are so many DA clubs in such close proximity here in So Cal that is was actually possible to do something like this.
As a business executive myself, I would have taken a different tact. I would have focused on giving my customers the best product possible to suit their needs. And I would have done that first and foremost by making the quality of my new flagship product (DA) as high as possible. I would also offer a range of complementary products (teams) that fit the specific needs of a range of other customers. And in so doing I'd want each of those teams (B, C, etc.) to be placed at the optimal level of competitive play for my customers. Further, I would have recognized that locking my secondary product (team) into a given set of opponents would be a detriment to my customers and, ultimately, a competitive disadvantage.
When you think about ECNL and DA, they are closed leagues but they actually have a promotion and demotion feature because clubs can be added or cut from the league depending on performance. But with DPL presumably there is no way to add or cut teams unless something happens with that club's DA teams (different teams in a different league).
This may be a business, but in my view the clubs are not being managed as a good business should be. As a customer, I hope for something better.