You don't indicate where you live and I assume there are a lot of 118th Streets in larger cities across this country, might I just counsel, if you live in NY or on the West Coast, you wait about three more weeks before you pass out that letter. A letter which could make future interactions with your neighbors somewhat tense.
I'm not saying back down from your position, a position with which I agree, but I live in the San Francisco Bay Area and I can tell you from a lot of personal experience that liberals don't embrace your diversity unless they agree with it. For them it's Free Speach if they agree and Hate Speach if they don't.
I live in Queens, NYC. The letter will be anonymous and I will simply leave it at people's doors.
If anyone objects, believe me, I can take care of myself.
Thanks for posting and for your concern.
Sincerely,