We know many Altcoins want to be better compared to Bitcoin but have failed so far
Please share here and also add a short comment why it is your most important Bitcoin argument.
My most important Bitcoin argument is PoW because PoW really ensures Bitcoin is safe and can't be attacked very easily, like it is possible for PoS, for example.
This question is funny but you should know better that Bitcoin will always be Bitcoin and altcoins are another coin own their own. Is it possible to ever see a coin that will pass through what Bitcoin has pass through, you mentioned some cons about Bitcoin but you didn't mention how Bitcoin face all of backlash and how the community was divided by many people to fork it and left Bitcoin mining to other altcoins but what happen later? They all died and only Bitcoin survived.
Bitcoin is Bitcoin and I'm not sure if there is any coin that will ever be like it. Even Ethereum that has been in the game for many years dare not try the comparison and challenge because it's not way near to where Bitcoin has been over the years. Even when ETFs were submitted, Bitcoin didn't had so much talk like the way ethereum is been handled. It might be a proof of work network but I'm not sure about the replacement. Solana that tries to replace ethereum, what happen later was disaster.