I think that some of these risks are a bit overblown, some are certainly true and some I don't think are as much risks as they are issues for governments. I think the biggest risk for bitcoin, and other cryptocurrencies for that matter , is the risk of loss. There are far too many people "in bitcoin" that have much of or most of their life savings inside it. This is not the proper way to "invest" , or "store" bitcoin..you need a well rounded portfolio at all times. To me, that is it's biggest risk.
And unfortunately the risk of loss comes in many ways and forms, not only you can lose a lot of money if you do not know what you are doing and you invest at the wrong time when there is a lot of hype and then the market turns against you, that is just one way to lose your money but we know that are many ways to do so.
Another way in which you can lose your coins is due to scammers that we know are incredibly common here and that can get away with almost anything, and the final way in which you can lose your coins is if you are unable to maintain backups of your seed words and your private keys and this can be very problematic because unlike the other two this is a problem with the nature of cryptocurrencies themselves, so even if you think that you are doing your best in order to back up such data many things can happen that can still make you lose those coins.