@OP I don't own 1 Bitcoin, but it doesn't mean I'm not a strong holders. If you think a strong holders are only people who own at least 1 Bitcoin, you're wrong. Actually there's many careless big holders who're either weak hands or hold it on centralized exchange.
Although owning more than 1 bitcoin, I do not think that holding a lot of bitcoins is a diamond hand, holding a few bitcoins is a weak hand. That's not right. Strong holders are those who hold bitcoin the longest regardless of the amount.
Because most of my holdings are altcoins such as Shiba Inu, Polygon, Bnb, and Xrp, then the others just don't make any money or just don't suit me.
My advice is you need to sell those centralized shitcoins and convert it to Bitcoin. There's no use cases at all, especially Shiba Inu which is only a meme coin, BNB is a centralized coin that the price depends on their exchange, and XRP is a centralized coin that work like traditional banking system.
Each person has a different investment style, I do not recommend he sell them, I believe that before holding, he has researched and has his reasons. But I can tell, he made the mistake of entering this market with a portfolio that didn't have bitcoin. He needs to add bitcoins to his portfolio, and now is also the perfect time to buy bitcoins as they are near the bottom, and too cheap to buy.