why is western animation so often deliberately ugly? why so visually repulsive?

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Saw this stupid af tweet earlier and now I see it here. To call SpongeBob ugly is stupid and the tweet comes from a person who just thinks their opinions are facts to what is ugly.
Number of legendary 500 post topics: 35, 500th posts: 34; PiO ATTN: 6
RotM wins 1, LETTEN MY ARROW FLYEN TRUE