I don't think that meme coins launching will simply stop, and as you have said, it's been growing in the last couple of years. And the reason simply is,
This meme coins are a magnet for easy money, I mean the developers can launch it and just used the social media to create a hype and then investors suddenly flocking in hope on a easy money profit. Admit it or not, this has been the formula ever since. The thing is that many noobs are also thinking this way so they might join the meme coins craze. Unfortunately, if you don't know how the game is played then they might lose their money and they could be the victims in the long run. So for me it's not advisable specially if you are a newbie to just follow meme coins and invest and then hope that you will get x10 or higher profits.
As long as decentralized systems exists that allows for permissionless token creation, we'd still see the memecoin and shitcoins narrative gaining traction. It's even of the very few reasons why new bitcoin and crypto enthusiasts are getting involved - Because they have seen or heard about people getting rich quick from those shitcoins projects. On the flipside, the narrative driven by this memecoins/shitcoins give crypto a bad overall outlook. Definitely leaves a sour taste in the mouth of many when such projects fails.