Ok in this scenario , if the government decides to take down nodes for Bitcoin or Monero which wouldn't make much sense on their part, anyone who has a spare $20 can setup a new node in no time
Anyone who had a drk masternode that got taken down can just as easily set up a new node. He doesn't lose his 1000 coins if the masternode is taken down as you don't store the 1000 coins in the masternode's wallet, you store them in a local cold wallet where they'll be safe. Again, you can setup a new masternode "in no time".
Plus the taking down of nodes will not affect Monero's ability to provide anonymity in anyway.
No, but it will prevent people from connecting to the network so for them it doesn't matter if there's anonymity or not if they can't even use it.