Dear Mr./Ms. Bossname,
I must resign, effective immediately.
The never-ending scandals at XYZ Company leave me no choice but to protect my professional reputation and personal well-being.
The final straw was this week, as protestors gathered outside our home office and media coverage intensified. The worst part is, the protestors are right. Knowing what I know about this company and how it operates, I should be out there with them.
Because I actually have a conscience, I can no longer be part of this company. Please have my final paycheck sent to my home address. I have retained legal counsel and will not be consenting to a non-disclosure agreement.