The ones who are telling you to rid of the government are people who wish to control you.
Though bitcoin is decentralized, we can never get rid of the government as they are the ones who maintain the law and order of the world, without them, the decentralized world will be in chaos. Bitcoin is a currency, it does not have the power to control us, we are the ones who supports and give life to bitcoin, but without the support of the government, cryptocurrency will never be adopted and probably will not survive in the long run.
Without government support crypto can boom as well, for example there are a lot of illegal things that government doesn't support and still they are flourishing as a business and making people rich as well. So it can be the same for crypto too, where people use and do business without the interference of the governments because of its decentralized nature like what the underground marketplaces are doing right now.
But this is the same reason the government bodies are trying to interfere and make crypto legalized so as to make people pay taxes and start legal businesses which accept bitcoin.
And about surviving in the long run, crypto has already survived for a long time and that's when the government tried to look at crypto because at first they would have thought that crypto will not work and will vanish after failing but they were wrong and now are trying to do things the right way.