Can you give me an example of a currency that is indeed decentralized if you think bitcoin or any crypto isn't? I also don't get how bitcoin can be controlled by those with political power. Seems pretty free from that at the momemt.
Bitcoin is not decentralized. Don't make me repeat this FACT again:
So for the currently bitcoin network with 8000 nodes, it can't tolerant collude by 4 top pools(actually, many ppls suspect that GHASH put its computing power in the shadow to hide the fact it controlls over 50% of the total computing power), the fault tolerant is 0.05%.
In addition to the pools being centralized, Bitcoin relies on centralized checkpoints controlled by the core developers.
Also I had already provided the following link to you twice, don't make provide it again:
Go read and do your homework before you post again (please!).