Here are some other people discussing why monarchy in children's cartoons is weird and bad:

https://www.reddit.com/r/PrincessesOfPower/comments/p7fjt0/progressive_values_conservative_government_the/

https://www.reddit.com/r/CharacterRant/comments/t9fjj8/shera_sucks_at_writing_war/

https://she-raandtheprincessesofpower.fandom.com/f/p/4400000000000042124

https://forums.spacebattles.com/threads/stargate-etheria-stargate-sg-1-she-ra-and-the-princesses-of-power.966974/page-82

https://www.reddit.com/r/PrincessesOfPower/comments/qouktd/im_bored_give_me_your_biggest_hot_take_regarding/hjs8ap5/

https://www.reddit.com/r/PrincessesOfPower/comments/16b7y33/how_is_it_that_only_the_ruler_of_bright_moon_is/

https://www.reddit.com/r/PrincessesOfPower/comments/16utrk1/whats_the_biggest_misopportunity_in_the_show_in/

https://www.reddit.com/r/PrincessesOfPower/comments/1bjczob/i_think_spop_has_a_very_bad_ending/

https://www.reddit.com/r/SheraMemes/comments/v2i7iq/shera_and_the_princesses_of_power_but_political/iat1qkd/

The writing of She-Ra just doesn't make sense with regards to the whole "princess" thing, and it's bad. I'm not the first, tenth, or hundredth person to think about this. There's a lot of anarchists who have complained about the monarchy thing being apologism, and a lot of nerds who have complained about the writing of the political systems being illogical and confusing.

Like, they even have an anarchist character in the show. Swiftwind, the talking unicorn. He spends his free time freeing other horses from slavery at the hands of humanoids. He spouts communist propaganda every chance he gets. And yet he never ever criticises the monarchy. It's weird!