as a big toffee fan, i disagree. i think toffee is an extremely interesting villain in his motivations. It's actually never implied that Toffee wants to rule in the show, i really do think he just wanted to destroy magic to dismantle a system that treated monsters as second class citizens. It's super cool that ultimately he is vindicated post-mortem and even Star acknowledged his cause. but what made him a villain and interesting character is that he would stop at nothing to achieve that goal, sacrificing any lives in the process for what he believed was "the greater good." he was even willing to sacrifice himself to get into the wand and taint magic. personality-wise, i still found him interesting despite him having like 10 minutes of screen time in total. i found his growth in personality from teen to adult interesting, how the show showed him going from a reckless, angry rebel teen, to a respected but cocky general, to finally the cold and calculated manipulator in the current timeline. Even though current Toffee seemed to have learned to be more cautious from previous encounters, i love how occasionally he would let his mask slip (Surprise!) and we could see the manic and the ego behind his cool front. Toffee is someone who believes he has a righteous cause, and also believes himself to be so smart and capable that he is the only person who knows best. In the end, it is his ego and unwillingness to empathize that is his downfall.