I don't think that's the definition of unfriendly country.
Unfriendly country at least they make people can't really free to use Bitcoin e.g. banks not want to accept funds which have relation with Bitcoin. The worst is a complete ban, where the citizen can't even allowed to buy and hold Bitcoin.
If the government are strict about taxes, P2P won't enough to solve the problem because you still receive the money through banks. Exchange to cash is risky though, criminals can threaten by pointing their gun on our head.
Yes, you are right because Bitcoin-unfriendly countries keep people completely independent and keep people completely away from using Bitcoin investment. This means that if Bitcoin is not legal, it becomes very difficult for them to buy Bitcoin and they have to adopt methods where there can be administrative problems if it is revealed. However, one can continue to use Bitcoin and invest in Bitcoin while maintaining privacy. However, to my knowledge, I have not heard of any country where the government has been very strict about using this Bitcoin and holding Bitcoin. If it had been strict, then of course it would have been very difficult for us to use p2p because transactions can be tracked there too.