Referring to Scambrain explosion allegation in the HBO movie, I find shitcoins useful in a sense that you can sybil shitcoin networks and get an airdrop, and then swap the shitcoins for BTC.
I also often do this.When I get an airdrop I will immediately exchange most of the results or the value into Bitcoin. Even recently I just did it, because I just got the results of a testnet airdrop that has a bear logo on its coin, something like this is very good for compounding on Bitcoin storage and is very good for long-term investment. And you need to know that most of the shitcoin project owners also end up doing this kind of thing, namely by exchanging their profits into Bitcoin. So I also agree with your thoughts and I think this is something that many people should be aware of.