Putting pineapples on pizza is a choice. Hate is called into question when it refers to something that is not a choice like race, gender, sexual orientation and religion (to a lesser extent). Also, inciting others to hurt people based on those same criteria is also a form of hate speech even if you physically hurt no one yourself. Also, what did pineapple ever do to you?No, there isn't.
I hate pineapple on pizza, and I have every right to say it. If I go to physically assault people who put pineapple on pizza, then I should be locked behind the bars, because I have no right to hurt others physically just because I do not like what they do with their food.