defender of truth
If you are going to be a naysayer and put others off from even trying (there is always one or two that do this in any endeavour), please refrain from posting.
The only thing I would offer as a "naysayer" is that you not pin any hopes on a single letter to the White House. It will accomplish nothing. Even if it gets read by a live human, your letter will likely be perceived as coming from a disenfranchised fringe element (ex-JW) and tossed aside without consideration. Also, the White House gets tons of signed petitions every year. How will your single letter compete?
I'M NOT SUGGESTING THAT YOU NOT SEND IT! I am suggesting that you time your letter to be part of a groundswell on the issue - make it part of the choir of support from a variety of sources.