"Although there are Nazi political parties in many countries including the US, Nazi party isn’t in power in any of the countries. There are Neo-Nazis in many countries as well."

"Am I safe if they take power? No I am absolutely not. But they are NOT in power and aren’t going to be in power."

What divine66 says is correct. The idea of threat from these types of people can often be worrisome but be assured that any realistic threat to you or I is next to minimal. They exist but they will always be vastly outnumbered and they'll never have much of a voice. I understand it's more complex a fear for you than I know but I want to reassure you that we'll all be ok.