Historically, the right side was pro-monarchy. Then, you go extreme.
I agree about the scale being different across countries. The american politics would be only right on a common European left/right scale.
If everyone doesn’t understand, have you considered that another thing in common is what you try to explain?
Except that the US right is not libertarian. If you ask them to describe themselves they often give that impression, but if you look at how they actually govern, libertarian is definitely not it.