Who ever said that #capitalism means that the means of production have to be in the hands of the 'owning class'? I only see commies using these terms, non of the Austrian economists, mainstream economists or economic publication are using it like this.
Capitalism just means that the rightful owner of capital or capital goods is the one who gets to control it (you get to keep your own stuff). I think the fact that we see an 'owning class' in our current society, is because of central banking. One small class of people is literally stealing 8% of the capital from the class of the rest of the people per year. This isn't capitalism, but statism / fascism.
About the #Bitcoin part I fully agree, I think it will prevent any type of government from growing out of control.