For day trading or micropayments, "meme" coins does wonders.
Lots of people tend to choose memecoins over bitcoin or ethereum when making small payments or transactions because they are cheap and as well as their transaction fees. This is something the top coins need to address but in the meantime this is probably one of the things memecoins are useful for.
well to be fair the other top coin such as BNB with its binance smart chain already spare people from overpaying for fees anyway I think its pretty much settled moreover there are existence of ethereum L2 where it takes off the transaction from the main blockchain to side chain and the fee usually also ridiculously low just few cents, overall its already solved problem more or less its a bit complex yes but I don't think meme coin wins in this regard not to mention that most of meme coin doesn't even have their own blockchain the one meme coin i know that has blockchain is doge coin and thats it, shiba deployed in ethereum as a token, other in solana and so on.
so I don't think the advantage you mentioned really an advantage.
meme coin only good if you try to find speculation since other meme coin holder are also speculating with their meme coin i think thats the only purpose and sole reason of existence of these meme coins.