This is something which I've beleived for awhile, which is the prospect that if big governments and banks worked heavily together they'd be able to remove Bitcoin from the face of the earth. They wouldn't ban it, as that would be a tough thing to swallow for the American people as they wouldn't see a good reason to do that ( at least in my mind here) But they could just go ahead and regulate Bitcoin into oblivion, making it hard for Bitcoin businesses (buying and selling, trading, etc) to operate within their countries, or be subject to insane taxes, KYC AML and such.
Do you think Governments could kill Bitcoin?
If all the countries will ban BTC then for example an overall BAN, people will have no choice, especially the legit ones will just sell all their coins and some miners will be forced to halt their operations BTC price will incredibly drop, it's not a matter of do you think they could stop BTC, but as we all know BTC purely relies on its supply and its users so even if there are people who are still using it in case of an overall BAN, there will be a lot of people who will sell and BTC will be again go in the dark market only.
Killing all the legal transactions is bad because no one would like to deal with a illegal currency, it may not stop the BTC completely, but it can kill its soul and the trust of people that is very important in a medium of exchange.
I think that if the government needs to kill bitcoin, and they take it seriously, they will succeed
Yup but BTC is okie as to what it is, let their focused be on other alts or how to improve cryptocurrencies mining.