No matter how stupid someone thinks Saylor is, the man just invests in Bitcoin in various ways and is responsible for his actions, which is the hallmark of adults and responsible people. Regardless of the current price of Bitcoin, in the long term it is a better investment than any altcoin, especially the one you mention, and especially after it moved to POS. This made the centralized project even more closed, and also subject to various internal manipulations that could result in a disaster at any moment.
Furthermore, do you know what gives the project its size? The fact that Vitalik does not even know what the max supply of his token is, and although he said it was 100 million, it is currently 122 million, and now he claims that it will still be 150 million. In other words, x6 more tokens in circulation put it in second place by market capitalization, which is pure manipulation and nothing more.
If I am being honest with you, I do not think Michael Saylor is stupid for investing in bitcoin, however, he says many stupid things similar to what is shown in this video. This was taken from an interview when bitcoin was trading above $50k.
https://m.youtube.com/watch?v=wIhTGB3wqV0&embeds_euri
If many people followed his advice, they would have lost more than 50% if they invested all of their savings, they would also be paying interest rates on mortgages and loans while having a 50% loss.