If you are so sure about this you should ask the present-day adherents on National Socialism whether they consider themselves part of the political left or not.
First, I don't make a practice of looking for a chance to interrogate such people. Second, to hear Hitler and Stalin tell it after they started fighting, there was no similarity between them--even tho if you or I had lived under one system and then under the other, we would have said there were distintions but not a dime's worth of difference between them.Terms such as right, conservative, even liberal depend on context so much that I consider it a sterile discussion. I probably won't hold the discussion you suggest, since I would expect such a language barrier that it would be hard to make sense out of what they said.