It is already a international currency as majority of people across the globe are using it, the only thing we need is that it should hit the mainstream to get more popular in future.
i think so. But some country not accept bitcoin, so what will we do to some country like that?
Of course some do not accept it.
I am surprised that some countries still exist that accept it.
Bitcoin was made for us to escape from the work slavery and poverty that our criminal govs want for us.
It's obvious that all the govs will be against it, because it is for our benefit and ruins their evil business.
Now, how to use it from where it is banned?
Just connect your wallet over TOR proxy.
It's very simple with Bitcoin Core or Electrum for example.
I will explain you how if you want
p.s. with "accept it" i assume you meant "they don't ban it" . Maybe you meant "they make it a national currency". Wasn't clear