LW if you are interested in being a loud and out voice for queer kids in your home town - and you think you have the resilience to do it - than contact your local ACLU or GLAAD chapter, tell them you have a great opportunity to be a test case, and then take their advice on whether to out yourself in your acceptance letter and make them rescind the offer, or get fired for it later in the year.

If that doesn't sound fun to you, then don't take the job. One class for one year isn't going to change the culture enough to make up for the damage you'll take, and your energy would be better used elsewhere.