Centralized ones mostly fail BECAUSE they are centralized, and I think there are a few of them at the top that I am still shocked they are at the top. Like how the hell does XRP do so well after so many years when people are aware that it's heavily centralized? But in that case it doesn't matter because if it is not something I invest in, then it is not my business to tell others what to invest and what not to invest, that's what matters.

We should be considering the situation changing at times, but in the end we are going to end up with a greater result. We should be considering how things will change, and how it will be not that easy to handle as well. We are going to make that work somehow, and we could make bitcoin be even more decentralized by just putting up decentralized exchanges that work as well. So all in all, decentralization is definitely the reason why blockchain was loved so much, and because of that bitcoin was loved too.