That's quite the inflated estimate, by your measures. Such an estimate assumes that PlayStation 5 owners are wholly categorized as either someone who purchases physical games or someone else who purchases digital games, when instead the average owner will have purchased games by both means. We don't have to look far to confirm that realization either, as you yourself have purchased a small collection of digital games, based on your site Collection.
Another aspect you're also ignoring is that PlayStation 5 systems can be grouped in two ways: those with disc drives and those without. I'm assuming that 95 million figure doesn't differentiate between the two, meaning the number of consumers Sony is willing to "alienate" is fewer. At the same time, not all owners of PlayStation 5 systems which include disc drives will be resolute in ways like others are proclaiming they will be. Some will resign to a physical-absent ecosystem and continue purchasing games, albeit in a digital format only.
Actually it's not inflated as the pendulum swings both ways. Out of the 95 million consoles sold, we're looking at ~70 million of them having a disc drive per Sony's numbers. I'm not even including those digital only consoles that the consumer bought the attachable disc drive later.
I'm not saying wholly categorized for anyone. There are games that are offered as digital only which skews the numbers in favor of digital sales by quite a lot, but if you want to play them, you have no choice and no ownership... and that's where the alienating comes from....ownership first, and choice second.
Sure, I've bought digital only games, most recently Code Violet (PS5), and I plan to buy a couple on the PS3 before the store closes like Bionic Commando Rearmed 2, but had I been given the choice for a physical copy, I would have bought the disc. Case in point, I recently found out that Ducktales Remastered on PS3 somehow got removed from my purchased licenses on the PS3 store and Sony is requesting I rebuy it at $15. Luckily, I found that particular game later got a physical edition and I'll happily pay the $10 difference for the disc.
Ownership is key here. The younger generations (for whatever reason, but we'll go with corporate grooming) are apathetic to the idea of ownership. They've grown up in a world of streaming services where the company decides what content you have access too and when. It's very much the "You will own nothing and be happy" idea that's been around for more than a decade now, but I would add a qualifier for most of the younger consumers... "You will own nothing and be happy
because of your ignorance." That's not the entire younger generations, of course, but it's par for the course. They don't understand what ownership is because many have been priced out of owning much of anything, including the stuff that matters, such as a home... but that's another conversation.
As for choice, it isn't just something that I want. I expect choice is something that most people want. Out of the ~70 million PS5's sold, even those with owners that mostly buy digital... they have a choice to buy games on disc, and I would expect that most of that 70 million have bought at least one game physically new since purchasing their system. When you remove a choice that someone once had, most will get over it, but there are quite a few that won't. Removing more affordable second hand purchases as an option will alienate the consumer base.
So that ~17 million alienated over no physical games... yeah, that's a way lower number than it more than likely is... not inflated in the least.