Which doesn't track with the real world, see the "oz of gold still buys a nice suit in 1900 and 2000" argument.

But it does. Even though gold has lost some purchasing power since then, the decreased cost of production of suits through better technology has offset that.

Small amounts of natural inflation are good, the unrecoverable nature of BTC means there will eventually be 0 BTC available for transacting due to deaths of people with memorized cols wallets, destroyed HDDs, etc.

Inflation is never good. That is loss of purchasing power. With an infinitely divisible currency, there is no need to increase the money supply. The infinite divisibility also means that there will never be 0 BTC. Gold has a divisibility limit in that it would be too small to see and/or easily lost.

People regularly carry around jumbo sized phones, take for instance an Iphone 13, at 6 oz that's $13,000 worth of gold, nobody regularly carries that in today's world. And somehow, they didn't need to "verify" and smelt coinage when it was pre-stamped with mintage marks.

If you want to move internationally or pay for more valuable items, such as in the millions, my argument still stands. People in the past didn't verify their gold before because they "trusted" their governments and yet, coin clipping happened constantly.

Be honest with people about what that means. The keys to your coin wallet are EVERYTHING, and since there is no take backs on the chain, if your BTC is taken, you are FUBAR, permanently. The generally accepted practice for significant amounts of crypto is 1: fully memorize your 15-16 word seed phrase and NEVER write it down in any fashion, and 2: use a permanently offline computer to sign transactions. Anything else is open to compromise, despite being "absolutely retarded" or not

Correct. This is what personal responsibility is about. However, there is no possibility that everyone will be able to self-custody Bitcoin. There will still be custodians of sorts. Uncle Jims, family, Bitcoin banks, etc.