> except it's not controlled by a banking cartel but by all it's userbase.
Bitcoin is absolutely not controlled by its user base, but by another cartel (made of mining pools and exchanges). You, as a user have literally no say in any decisions taken by bitcoin except voting with your feet, which is exactly what you're suggesting against Visa & MasterCard's (which aren't banks by the way…)
The exchanges and miners do have a large influence, but the node runners (the users) have a voice as well. The node runners can get together, and refuse to peopogate the blocks of of the miners/exchanges that are being bad actors (BIP 148 for example) and also (BIP 110) that's currently making the rounds.
If a large enough percentage of the node runners need refuses to propogate a block from a bad actor, then another miner can mine the same block and get the reward.
Bitcoin is absolutely not controlled by its user base, but by another cartel (made of mining pools and exchanges). You, as a user have literally no say in any decisions taken by bitcoin except voting with your feet, which is exactly what you're suggesting against Visa & MasterCard's (which aren't banks by the way…)