I wouldn’t go out of my way to announce to adcoms that you were judgmental of others because they were different than you. I think colleges want people who can embrace differences, not those who may be divisive. How will they know you’ve changed? Because you say so? You also say you have a “passion” for veganism and that you’ve “worked to find the best way to show people how great this lifestyle is.” But why does it matter how great you think that lifestyle is unless you’re trying to convince them to drop their current diet and adopt yours? That can be interpreted as judgmental too.
What is it you’re trying to get across to adcoms? It’s clear you’re passionate about veganism, but trying to tie it to your math struggles feels like you’re reaching. Veganism isn’t supposed to be the topic, you are.