Yes government can kill bitcoin in the way how they want to do it for example if there no more people who are appreciating bitcoin they can kill it easily
You make say Bitcoin can easily kill but do you think people will stop using Bitcoin? Even other crypto will dead Bitcoin will still the one who will stay at the top even goverment force to issue a ban on there country bitcoin cant still die like that. People will find a way how to earn bitcoin even US cant really easily ban bitcoin cause US have the biggest investor.