I think the problem here is the difference between your and his attitudes.
Due to his ethical views (actually IMHO it’s an excuse for laziness, but for the sake of argument let’s just call it that) he doesn’t actually care if some things don’t happen. So if you stopped doing certain things like ferrying the kids around, doing a proper shop etc, they wouldn’t get done and he wouldn’t care - he would just accept it as a “different lifestyle” and expect everyone, especially the kids to adapt.
You on the other hand want to enable your kids to go to clubs, see friends, have access to a varied and interesting diet, etc. It matters to you that the kids get this. You are aware that if they did not have this “luxury” they wouldn’t die, and they would probably adapt. But as their mother you want them to have what YOU perceive as the best, most enriching life you can offer them.
This is a fundamental difference in opinions of what good parenting looks like, and I am sad to say you will struggle to change his mindset.
I have gone through similar with STBXH, albeit his excuse/explanation wasn’t ethics, it was laziness/selfishness. So for example, when I was home at the weekend I would make a nice family breakfast for all of us, including DCs to enjoy. It was family time for all of us and a chance to chill together, have a catch-up, etc.
Due to working shifts though, I am sometimes working over the weekend. On those days, STBXH would sometimes not get up until 11/12 o’clock, so breakfast would be more like lunch, it was rushed because the dogs needed walking and everyone was cranky because they had been lazying around for hours before the “official
start of the day”.
When the DCs complained his answer was they should just sort themselves out, they were teens/pre-teens and were unlikely to starve. And while I understand that yes, he is right, they weren’t going to waste away and are perfectly able to sort their own breakfast as they in fact do every weekday, the issue wasn’t about just feeding themselves. The DCs mostly just enjoyed the family element and the routine of having a breakfast together.
The difference in attitude is massive, and I’m afraid in our case I have now given up to try and make him understand.