In a nutshell, mine would be:

• “My favorite color is red. Imma look up economic systems. Wait, what is socialism? Hey! The socialists like red! Oooooooh, their books are also red! I’m sure that these will be good reads-”
• A few hours later
• “Huh, I’m an ML now. I regret nothing.”

Though, I’m just asking what was the dumbest reason you get radicalized left-wards.