AITA For wanting to read Donald Trump's book?

I don't support Donald Trump's presidential campaign at all and disagree with him on many topics.

However, I am big on getting both sides of the arguments. I want to know how he's able to sway so many people and how he got to where he is today, even though I don't particularly like him.

I asked my parents if I could pay for it on Amazon and they said no because they don't want to give him money. Also, that they won't let me buy it. They're liberal themselves as well. They said that they're "open-minded but not so open-minded that their brains fall out", which is kinda insulting to me personally because they just low key called me unintelligent.

I just feel like they say that they're open-minded, yet refuse to let me even read something written by somebody they don't like. I want to read Mein Kampf for the same reason. I want to understand another POV, even though I disagree with it.

My step-mom said she doesn't care if I pirate it, but I don't want to. If Trump wrote the book, and I want to read it, I'll buy it.