Did you really not notice that Fulco was far from the only one protesting you?
It's not like Alanna is some kind of lackey of Fulco's. Yeah, maybe some of the people who protested did so because Fulco asked them to, but I very much doubt he could have swung enough to get you out of office all by himself.
If you think that this is purely Tybalt vs Fulco, you're deluding yourself.