Well, maybe "memecoin" wasn't the word I was looking for. You can call it whatever you want, but it's not used as a mainstream means of transactions and never will be, based on its technical limitations. That means cryptocurrencies will be solely used as investment instruments and since there's no other tangible value associated with them it will come down to their name/brand/meme/reputation/etc. Bitcoin has obviously got the biggest brand name in crypto, followed by Ethereum, etc. etc. and their market caps reflect that.
This entire thread, to me, seems to be mostly about people worrying about a problem with Bitcoin and crypto generally that nobody actually cares about, and nobody has any reason to care about. Bitcoin is slow and expensive to transact in, and with a $860B market cap, I think it's safe to say that this is unimportant to investors, that's all.