@petergleick
If only you are holding the private keys or the seed of your wallet and if you keep it safe, no one can steal it.
Regarding the price, when #Trump came up, everything was shaked. Not just crypto. One of them, #EUR rate with respect to #USD.
I agree these #decentralized #money are not as much decentralized as they should be. But as a matter of comparing, the USD is under control of just one entity. But as for #Bitcoin, several parties share authority.
Not to mention that #cryptocurrencies are not all the same. And there is #Monero which is much more decentralized thanks to their #P2P mining pool.
We are not in a perfect world. Sometimes you haven't got a good choice. Only "bad" and "very bad" ones. In which case it's logical to choose "bad" because it's the "best" choice.
Last but not the least, cryptocurrencies are developed in the open in the general case. Where in the case of something like USD, it's up to the #US government and central bank. If you don't like a crypto and you think your idea is better, it is possible to fork it and form your own community and network. For instance #BCH is a fork of #BTC. Because some community members had the opinion BTC is going the wrong way.