The left/right isn't a political spectrum, it's a divide and conquer tactic, whereby liberalism gets split into economic liberalism and social liberalism, and then one side is fed arguments about why the other is the source of all problems.
The best approach is to never use the left/right concept, as you're always going to look like a reflexive partisan, one step away from using the non-argument "you're just one of them!"
This is why libertarianism and the various other anarchy inspired political ideologies are popular among Bitcoiners; they appear to be left-right blind, taking ideas from the left or the right as long as they promote liberty.
As I see it, it is pretty safe to say that the reason why libertarianism is popular among cryptocurrency users is because you are free to do what you want in life (socially leftish), while understanding how economics should work in a capitalistic society with limited government regulations (economically right).
Do I think capitalism is necessary at this stage of technological advancement we have in society already? Honestly, no... I don't think there is any "-ism" that satisfies what a nation (or everyone on planet earth) should follow; because all of those "-ism's" were created in an era where the industrial revolution was just kicking off. This was during a time where there was still a high demand of people needed for farming and that sort of thing... obviously something we don't think about any more while food is in abundance (in wealthier countries).
We are
WAY beyond what the current political ideologies tell us how to function as a society... As a human species, we need to go back to the drawing board and figure out the best way to live peacefully and work towards advancing human well being even further.