I think you should spend a little more time understanding what Black Power is and what it isn't. It fundamentally is a statement of self-respect, pride and self-determination; core American values. It is not one you should be threatened by, but one you should respect.
Black Power - Wikipedia
Black Power [ushistory.org]
What Is Black Power?
The picture of the black female cadets at West Point (above) is a picture of pride of accomplishment. Look at them.... try for once to feel what they may be feeling. To really think about their accomplishment, black females competing and being successful in a rigorous program, defined by white men over 200 years. It is an accomplishment to take pride in ... for anyone, especially a black female. If you are threatened by that, you need to search your soul on that one as that is an irrational response.
In stark, stark contrast, the Nazi and KKK movements have been about hatred of another class of people, with a rude history of oppression and violence.
To my knowledge, there is not much of a record of people in the Black Power movement suggesting (or acting upon) burning crosses in the yards of white people or lynching. There is huge, huge difference that you need to better understand if you wish to speak intelligently on this subject. Kudos to the Republican governor of West Virginia for showing some degree of decency. The rest of your party should take notice, as fewer and fewer decent people are remaining Republicans. We need more decent people in all political parties.
Don't ever think these things (black power and the racism inherent in nazism and the KKK) are even remotely equivalent. They are not.