Here is the thing about having kids miss SB or BB games in the summer.Football isn't alone. Basketball seems to be getting worse all the time as well.
Soccer, swimming, and volleyball are a pain due to non-school-sponsored club activities (indoor and outdoor club soccer, club swim practices before school, and JO volleyball). As the coach of a girls spring sport, I go through phases of which of those 3 sports I hate the most, haha. A couple years ago, our school softball team couldn't schedule games on certain weekends because of major JO volleyball tournaments that would've wiped out half the roster including the entire battery.
You can complain about it, which it does suck, and cancel/not schedule games or call up some younger kids possibly to get some invaluable experience.
I know when I was coaching HS baseball in the summer we had kids missing for various things in the summer and yeah at times you take your lumps, but at the end of the day we got some of the backups more PT, or younger kids, more experience.
The one place I was at I had 4 guys missing every Monday, 3 different ones on Wednesday for an open freaking gym basketball. One weekend got wiped out because they went to some team camp but that next Mon/Wed those kids all showed up for baseball. I assumed they had off from hoops because they just were at a tournament until I got a nasty voice mail from their hoops coach that they skipped basketball for a baseball game. Truth be told, the kids said they were sick of playing basketball in the summer (and their hoops program is pretty good).
At the end of the day the record may not be the greatest, but the program can be better off.