Most of these types of cartoons were scrapped not by liberals but, from socially conservative church groups which were bipartisan. This was also done
with music labeling and such in the late 80's-early 90's with musicians facing off against Al Gore's wife Tipper and other wives of politicians
(bipartisan). Even so far as to seeing a comic book with Lita Ford fighting Tipper and her church group of demons. Funny era.
Dungeons and Dragons cartoon was boycotted by religious groups because if had sorcerers and such and the exaggerated claims of death told by churches
about the D&D games. (claimed people that played this game became demon possessed and killed themselves)
Even down to smurfs where it was claimed that Gargamel and Papa Smurf dove into the dark arts to battle each other. As a child I had to listen to an
hour sermon on the evils of the Smurfs.
Anything that was too realistic or imaginary was targeted. My parents even got newsletters from these groups on which programs to not let your
children watch with boycott lists of sponsors of these programs.
Personally I liked:
Dungeons and Dragons-Sorcery, Magic, Evil, Demon Possession
Battle Of The Planets- Never heard a sermon against this
Voltron -Witch Hagar and her creation of (demons), Violence
He-Man-Too much sorcery and magic, Violence
Thundercats -Believed to show evolution of humans from cats
She-Ra -Too much Sorcery and magic, feminism, Violence
Jem and The Holograms- Rock Music, Evil, Convinces children it is ok to listen to rock music.
Pole Position -Talking cars, a sign of the Mark of the Beast!
Transformers-Sentient machines, takes away from God's Creation
Jace and the Wheeled Warriors- Sorcery from his ring, Evil monsters,
Just many others I can't remember.