this is going to be a legal issue on whether I can assert their DIE session is a religion vs. politics
Sincerely held religious beliefs are a matter of what you sincerely believe, not other peoples' opinions. Even if HR believes that DIE is political, they are neither you nor your God and cannot dictate your reigious beliefs.
They are legally mandated to make a reasonable accomodation for your sincerely held religious beliefs so long as it is not unduly burdensome. It is extremely easy to argue that excepting you from attending this religious service is reasonable, as you dont need it to perform your job. Even if the DIE cult meetings tangentially touch on corporate policy (e.g. "You cant fire Joe for being a Muslim"), your attendance is not required to comply with the law. For much the same reason classes on wearing pants are not necessary for you to show up to work with clothes on.
(post is archived)