I agree with you completely but, what if some greedy players in the market (be it politics or banking) suddenly feel threatened by cryptocurrencies and start acting against it? Never forget: They do have power and influence, even if they would never ever admit it.
I've seen this in a similar way already with vaping. For years they've tried to stop or ban vaping because they clearly saw their profits from tobacco getting drained... That is why they started acting against the threat..