OK let’s say there are Nazis, but this belongs to other countries, too. If it is allowed to invade your neighbor because there are Nazis in it, you can overrun east-europe including parts of east-germany, or Italy, their leader doesn’t have a problem to follow the example of Mussolini. Even in the US there is a cult for nazism, invade them, too?
Handle their nazism-bullshit belongs to the inner security of a country, no other country has the right to invade them just for cleaning up nazism. Because invading and killing people is what real nazis do in favor.
tl;dr: It’s a difference to hype a cult like neo-nazism, or invading/killing and doing real nazi shit.