I chose Bitcoin as a big chunk of my portfolio because of a often overlooked risk

I don't know how its in the US, but in Austria, a brokerage only has to give you 20k if something happens to your entire portfolio (embezzlement or other mistakes). So if you had 100k, 200k, or even more, and your broker messes up and your assets disappear, they are legally only required to pay you 20k, no matter how much your portfolio actually was in value.

Since you can't hold stocks/ETFs on your own but are required to use a broker as a normal person, you always have to bear that risk of your 100k or even more networth to getting reduced to 20k. (For everyone saying "Oh but btc also can drop in value so 100k can become 20k too. " Yes, but it can recover and go back to 100k just by waiting and nothing else. If you lose 80k in your stock portfolio, it won't recover from 20k to 100k just by waiting because the stock price didn't make it fall, it was the loss of your assets. You have to save the money again and invest for many years to go back to that level)

With Bitcoin, that risk of your asset holder screwing up doesn't exist, so it feels much safer.