it is apparent when people talk about how bitcoin is centralized because most miners are running their rig in china, and so on. imo mining location is not the core of the decentralization, since you can easily remove one location but the network is still going to survive albeit the scalability might be affected in short-term.
Yea ... there is always something to make FUD from. In 2021 we have china centralization FUD, and china ban FUD. When someone says that bitcoin is centralized because of big part of bitcoin hashing power comes from China I always anwer the same way:
It may surprise you but China is a country. Not a single person or company. I can go even further with this. Bitcoin is not decentralized - earth (our planet) is resposingle for 100% bitcoin hashrate. If earth will decide to stop mining ... btc will die!