Your letter is a great response. Great job.
If they don't print the entire letter because of its length, I would encourage you to use the content of the letter for an Op-Ed piece for the paper. Most papers accept Op-Ed pieces from readers. Check out the paper's requirements for Op-Ed pieces.
(Op-Ed articles means "opposite from editorial" that is printed on the page opposite from the paper's daily editorial)
Better yet, the Minneapolis Star Tribune may be a better alternative for an Op-Ed piece since it reaches a much larger audience. I figure it's circulation could be somewhere around 250,000.
Out of the closet and into the streets!