Apple has never allowed ad-blocking software on the iPhone or iPad. This is one among many reasons that I ditched both. Not because I hate ads all that passionately, but because it's an example of the obsessive corporate control Apple maintains over its environment.
You're more likely to vote Democratic if you hate Republicans than if you love Democrats, and vice versa.
I hate the idea that we might lose even a few talented future leaders because they fell for Bernie Sanders's spiel and then got discouraged when it didn't pan out.