There is a ton of survivorship bias in this space.
People think that investing in memecoins are going to make them rich because they see the examples of Dogecoin, SHIB etc.
But for every memecoin that has 100x'd there are twice as much that have gone to the floor. Take a look at Monacoin, for instance.
Well, monacoin never really try to hard on the meme coin aspect so it fails to meet up the expectation and going down hill in term of price really have nothing to do with being meme coin. Though, I understand your points. Yes, there are many meme coins that will never be able to make it so people should really stop putting everything they have into meme coins. Only invest in meme coins if you're willing to lose that money.
The last part of your statement is true invest only to any meme coin if you are ready to risk and lose your money.If the timing was right then profits will be bank away from meme project but if you failed, the opposite will happen, it's tough to recover if the coin you choose don't have the big hypes behind.
Buying Meme coins is something that you are investing the same, like with gambling. The first thing is you already knew that Meme is just for riding and no real use case inside this market.
Use the amount that you are willing to let go and hold for luck to accompany your investment..