What data is irrefutable? Where is your “data” to support your proposition that “I feel pretty confident it has nothing to do with restricting youth sports...”?
The problem with this line of thinking is that it tries to parse out youth soccer when social distancing cannot be a la carte. At the same time you are posting this, there’s some idiot posting the exact same words in his bbq forum, except substituting “grilling some ribs” with “youth soccer.” And someone at an AA forum substituting “in person recovery meeting”. And his former bartender posting the same except “mixing margaritas” instead of “youth soccer”. There are millions of people complaining that the thing that is important to them is the thing for which an exception should be made. Youth soccer is apparently a big deal for you, but objectively it is a ridiculously stupid and inconsequential activity under current circumstances.
The studies that have been referred to over and over again:

Youth Sports COVID Safety Whitepaper - Surf Cup Sports
New Study Finds Limited COVID-19 Transmission During Outdoor Youth Sports in San Diego County Study offers path forward for San Diego County to safely reopen outdoor youth sports DEL MAR, CA, August 14, 2020 – Today Surf Cup Sports is announcing the results of an eight-week study...

On top of this, our club, which has over 1000 players, has been practicing since 7/13. Not a single issue. That is also the case with all of the surrounding clubs. Kids are simply not getting covid-19 on the field. Finally throw in the fact that states that are open are not exhibiting any issues here either.
If the BBQ'ers have similar studies, which they don't, then they should be making the same arguments without a doubt. That comparison is just silly, though.
I actually have a much bigger problem with kids going back to in-classroom instruction. I'd rather see us optimize for outdoor activities for all kids so they can be physical and socialize. I don't even care if it's soccer.