The most famous memcoins do have utilitarian features. For example, DOGE has always had a utilitarian feature in the form of convenient value arbitrage between exchanges because DOGE commissions were very minimal.
Yes store of value which arent different on utilized projects. But there are some meme whom trying out to have a utility still its primarily growth will be based on hype and pump and dump from the general community. Thats all that matters to meme projects who wanted to gain attention. Imagine some meme have higher marketcap to those who actually have product then thats insane things to believe but its happening.
The PEPE memcoin had a larger capitalization than various smart contract projects, which took a very long time to develop their ecosystem and their blockchain. Cryptocurrency is amazing in that on the same pedestal at the same time can stand projects with its ecosystem and great utility, as well as projects that are absolutely useless to the community. In the case of PEPE, it not only turned out to be useless, but also harmful, because it caused a sharp increase of commissions in Ethereum network.