Thread:Sannse/@comment-28890433-20160522122255/@comment-25024589-20160522123127

In order to demote a bureaucrat, you'll need to make a community vote in the form of a blog or forum post. (Polls can be rigged, which is why they're usually not accepted.) Give the community time, such as at least a week, to vote; then if the majority wish for the bureaucrat's demotion, send in details via Special:Contact/general.

Another thing to note is that admins cannot block any of the voters from voting, though the case here doesn't seem to be one of abuse, so you should be fine. In the event that admins are blocking voters, however, use the aforementioned contact form.