Some of us do because we only buy from non-DRM encumbered platforms like GoG.
Don't buy games on steam, windows store, apple store, etc.
Stop giving companies money for something you don't own.
And the PS5 is meant to be able to play digitally downloaded while disconnected (at least the ones you own, not the PS+ games). It's just the implementation is little buggy, it sometimes breaks for some people and you get a bunch of vocal people complaining about how it doesn't work.
So IMO, you aren't losing much there. The digital-only experience isn't that different from needing to have internet to download a day-one patch.
It's the used game sales that are the biggest loss from this move.
Probably, they're already heavily invested in digital-only games, e.g. virtual console, or selling game boxes with just a download code.
But this goes back years already, physical copies of their games have remained expensive for ages. Relatively modern and/or very common "everyone has these" games like various pokemon games going for full price to 2-3x that.