So let them flipping charge for it directly.... charge an app developer for tools, for downloads, etc
Instead of making rules that some apps don't pay a single cent towards it, and others get nailed for what really appears to be "popular category walled garden tax" when Apple doesn't build anything that is being bought digitally
Because in the end, based on Apple's financials, we know this is almost pure profit. The amount Apple spends to keep the App Store going is piddly, and those tools, and those 3rd party apps, are what keeps Apple's actual products selling... which should be the priority. If you stop selling hardware, you lose everything else.