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Then we will just have to disagree. That is fine.
I will just say that most American's knowledge of any history is poor, and their knowledge of real history is almost non-existent. Most of what you think you know is not true. That is the hard part to overcome.
If you get some time, read an old book called "Lies My Teacher Told Me" by James W. Loewen. It is a little dated now that it is over a decade old, but it still will show you some of the problem. Then, after you read that consider that poor old Loewen only scratched the surface.
But, it is not a problem that we disagree --- might ruin your holidays if it were otherwise.
:-)