a) Future abuses via Satoshi having too many Bitcoin or from a Bitcoin elite can be countered right here and right now by supporting alt-cryptocurrencies. If one government backed Bitcoin then back the alts so that that one government competes with all those other government backed alt currencies. My attitude and behavior remains unchanged regardless of who backed Bitcoin initially or who Satoshi is.
b) Backdoors should be assumed to be in Bitcoin already. If you run it on Windows and you didn’t compile it yourself then assume the NSA and FBi backdoor is already there in the code you either didn’t compile yourself or you ran on a closed source operation system which once again you didn’t compile yourself. If your behavior would be the same whether the backdoor exists or not then you’re okay, and in my case my behavior would be exactly the same whether a backdoor exists or not so I don’t fear the possibility.
c) The government crackdown possibility is real but the best way to defend against it is to actually support many cryptocurrencies knowing that some governments are possibly going to benefit from them. When enough governments stand to benefit from the technology in general, then sort of like the Internet it’s here to stay and for the same reasons.
d) Even if the government designed Bitcoin it does not control it, and it’s highly unlikely that any single government could maintain control of cryptocurrencies as a technology let alone control Bitcoin. So in a way Bitcoin is decentralized enough that no single government can dominate it but I’m sure many governments are involved at the clandestine level.
Not really. There will be people who like to eat. There will be morbidly obese people who will eat until a heart attack. But there is nothing fundamental about pizza that it’s essential to the planet, the survival of the species, the sustainability of the environment, or staying happy and healthy. If it were important then people would buy more pizza, such as if pizza were shown to extend human lifespan then yes people will buy a lot of pizza. But if pizza doesn’t do that but vitamins do then people will spend Bitcoin on expensive vitamins instead of pizza but the Bitcoin will always be spent.