If you added "Most" before 'Americans', I would have agreed with your post 100%. In fact I suspect stormy present would have agreed by a similar margin. Without the "most", your words can be read as over-generalisation, in fact both people who responded to you did so - even if as clear from the above you didn't intend that meaning.

It would be nice if you could admit that your wording was prone to be misunderstood and she could see that you didn't meant what she understood reading you, but sadly your discussion devolved into an unnecessary flame war...

_{*Lunatic*, n.
One whose delusions are out of fashion.}