So far, many people believe that Bitcoin is truly decentralized as "no one" controls it. But the harsh reality is that every single cryptocurrency and Blockchain network depends on the Internet to survive. It's no secret that in today's world, big companies like Google, Facebook, and even Amazon control the Internet. On the other hand, ISPs (Internet Service Providers) have a final say over what people can view or host using the Internet. This means that Internet is centralized, greatly defeating the purpose of Bitcoin and other cryptocurrencies of eliminating the middleman.
For Bitcoin to be truly decentralized, the Internet needs to be decentralized first.
in the internet's current form, yes, the centralized infrastructure and limited number of government-controlled ISPs is problematic. hopefully
p2p mesh networking will mitigate this issue, but it'll realistically take years to build out the kind of networks that could support bitcoin. consumer mesh routers have only been out for a few years.