You still havent answered the question either

"So do you think there are only 20,000-50,000 or so Bitcoin users in the world right now?

If no, then why isn't even a fraction of them running a node right now? Why is Bitcoin considered to still be decentralized right now even though hardly any of them run a node? Not anywhere close to all users wants or needs to run a node for a network to avoid capture and be decentralized."