Well goodness, I'm surprised you didn't start tracing out hand-turkeys and coloring little pilgrims right then! Nothing gets me in the mood for a holiday like an irate mother shouting obscenities into my ear.
I say invite her for Thanksgiving, but serve no food. Instead perform an excruciatingly long interpretive dance demonstrating the genocide of the Native Americans, followed by a tearful song lamenting the deaths of millions of turkeys.

In all seriousness, it was good of you to stand your ground.