Simply, is Bitcoin the ultimate tool to fight against the censored banking system?

IMO, yes it is. Bitcoin isn't even a money yet because governments has to make it a legal tender to be accepted as currency but it becomes storage of value and often we can find how people call it as digital gold. Still not many even who is holding bitcoin understand these things, for them bitcoin is an asset that appreciates quickly so they bought with the rigged paper money and will not hesitate to sell them for that paper money again.