Meme coins and NFT's are part of cryptocurrency, whether we like it or not. They are simply too popular with whatever this generation is. I think we should avoid them in order to avoid financial ruin. They are not serious investments.
Meme coins play both a positive and negative role in the cryptocurrency market. Yes, they make cryptocurrencies a little frivolous and clog up blockchains. At the same time, they force developers to improve blockchains and increase their scalability. But the concept of usefulness and uselessness will still be decided by the market, as with all cryptocurrencies up to this time. Everything that is superfluous and unnecessary will disappear over time. Therefore, there is no point in worrying too much about this.