I agree with you. Basically meme coins are created just for fun and they don't have any fundamentals. Only coins are created in the network and then attract people to buy them. Some meme coins are successful because they have strong communities. I don't know how the community formed but I think meme coins are highly speculative and we can't analyze meme coins to estimate their potential.
They're also meant to enrich developers/token creators. Foolish investors buy "meme" coins only to get ripped off in the long run. Totally not worth it, imo. The recent surge in "meme" coins can be largely attributed by the hype surrounding the crypto market.
If you're fast enough to take advantage of the "pump", I'd suggest you sell your coins before it's too late. When "meme" coins dump, it's the perfect time to buy more. Never rely on them as a long-term investment, though. The crypto market behaves in many strange and bizarre ways, so expect the unexpected.