It's not. You're just desperate to prove your point. In years past, consoles became $200 cheaper to produce in about a 3 year period and you're telling me the PS5 is essentially $50 cheaper to produce in the same time frame, 10 years later when $50 in 2013 is worth about $38 now, meaning it's not even 10%. It's more like 7.5%. It's meaningless. It's also only 10% because Sony has sold 50 million units and gets preferential volume pricing from TSMC that MS would never get even if all of their 25 million units were Xs.
It's silly to think that MS "lied" to everyone because previous 50% reductions for Sony console costs are now 7.5% when produced enmasse for Sony. Xbox savings would be lower and possibly non-existent. Not to mention the fact that if MS had produced a ridiculous looking console like the PS5 did to save costs, they would have been raked over the coals by the media. MS were right that costs are not going down nearly like they used to. If they weren't right, then the PS5 Pro wouldn't only have 16 GB of RAM.
I get it, lots of hate for the S, especially amongst tech enthusiasts, but there's really no evidence that it hurt Xbox *yet*. Just a few devs complaining they have to work harder to get some things running on the S, which has 99% feature parity across the game line with the X. The loss of split screen on BG3 is one of the only S downgrades that has affected gameplay in any way and most S users probably don't even care, Internet trolls notwithstanding. The verdict is still out on the S. It'll be interesting to see what happens when MS price the consoles at $199/$399 soon, as I believe they will, taking greater losses to get more GP users, which I believe is the right call.
I still think they should bring their consoles out 1 year after Sony to "ruin their party" so to speak. That and 6 AAA games every year should slowly bring them from 2:1 to 1.5:1 over the next 10 years with GP subs heading to 75+ million. I'm not suggesting that if PS5 Pro is in 2024 that MS start a new generation in 2025. Just bring out another machine. Then if Sony brings one out in 2027 or 2028 to start a new generation that MS just brings their "next gen" console out in 2028 or 2029. Lets face it, Sony's not going to be able to show off anything super impressive in the 1st year of a new console when everything has to be cross generation for sales reasons and MS can always play the game of "a year from now we will blow you away" and show some trailers etc... It's enough to keep Xbox power users happy with the right marketing spin - "we sold you the X with the expectation that you would get at least 5 years out of it before wanting to upgrade..."
Remember this: MS isn't in the business of "beating" Sony in worldwide console sales. That's a fools errand, especially with Japan. They're in the business of growing the Xbox division and that includes consoles, PC, xCloud, mobile, GP subs, more engagement with MTX and DLC etc.... They can do quite well if Sony sells 120 million units and they sell 60 million units and could probably have even larger profits than Sony if they can sell 80 million units. They just spent $100 billion over the last 6 years getting 40 studios. Dev cycles are 5 years for a AAA game + Covid delays. They're just getting started really.