LGBT email lists at Federal Agencies

I received my second email from LGBT event at NIH in a week. I asked to be removed from the list and was told it could not happen. The problem I have with this group being able to give speeches and hold lectures, is the LGBT is a political group that supports DNC and shouldn’t be classified as a nonprofit. Nor can I as an individual request to be removed from the email list. Nor  can I hold a lecture at NIH on the cost impacts of LGBT have on public health systems.