BTC can not be defeated, many country once banned btc , but all those country re-accepted btc at last. btc will be the worldwide coin in future.
Now, Bitcoin is the currency of the world, nobody or any personal companies can manage it, but important it still illegal and the future of Bitcoin still not clear like your said. Because some rumors about banned crypto of China has made the price of Bitcoin falls down much recently.
These kind of the moves is happens due to illuminati handling the ethereum and that's value be increase and still does not aware of what is reason behind china banned bitcoin.
I expect bitcoin is being legal in many countries and price will also recover the amount soon.