i believe you don't understand it.
I honestly hate this argument. Most people are smart enough to understand it. Yes, its decentralized. Yes, only the computer network is needed to verify transactions. We all get that part. The issue we have we don't believe it will be allowed to run wild and free.
No matter what country you live in, you have to live within a certain framework. Some countries are freer than others of course. Nobody wants to live in a shit hole country where nobody cares about anything because although you might be able to do what you want to do, the amount of corruption is usually insane, but you also cannot enjoy your wealth and freedom. So to have meaningful freedom means that there will have to be general restrictions of some sort.
If a system that completely bypasses the accepted monetary system of that country is allowed to flourish, and proves better in some respect, then the country looses the ability to finance anything. You might think that you want to live in a country that is bound by a certain set of financial principals, but good luck trying to get any services. Sure you might pay low taxes, but you also aren't going to get anything for it. Now I'm not saying what the FED is doing is right, but if crypto overtakes the USD, as an extreme example, then imagine what this does to the country. You think you will have a police force to protect you? What will happen to road maintenance? Maybe you want less environmental regulation, but then I picture clean drinking water being even difficult to come by. Perhaps the military is defunded and all of a sudden, China wants to come set up shop.
So no matter how badly managed the financial system is, I just don't think a system that is out of the hands of the authorities is what most people would benefit from. But even before it gets there, I'm certain that it won't be allowed to happen if BTC truly did threaten the dominance of the dollar. So its not that we don't understand BTC, its that it will more than likely be the demise of its own success.