Governments if get united can destroy, but governments won't get united in this regard. Because, each government has got different stand on the cryptocurrency usage. Some agree and adopt it, while some doesn't. Maybe similar to the recent months governments come up with regulations that will restrict the growth but won't lead to destruction.
Right.I believe bitcoin is already inevitable today because a lot of people are learning to value it already as a form of long-term or even short-term investment.So even if the government will continue on making regulations against bitcoin,that won't stop bitcoin from conquering the whole universe since people are the ones who controlled it and not anybody else.