why oh why are these altnet fangirls only response to bitcoin solutions "go use another network"
Because your solution to simply make blocks bigger has been tried and failed multiple times already. Why would we go down a path we know doesn't work? If you want to go down a path, then there are dozens of shitcoins for you to choose from. If you want bitcoin to go down that path too, then propose a change on GitHub rather than just constantly whining about it.
which is more than meets real demand of real transactions.
Even if we assume your math is correct, what in 5 years' time when that isn't enough? Increase the block size more? What about in 10 years' time when
that isn't enough? Increase it again? What about in 20 year's time? Increase it endlessly? Increases in block size are necessary, which is why we already increased them back in 2017 with SegWit, but they aren't a solution on their own and you can't just increase them indefinitely or you will end up like the failure that is BSV.