I haven't seen Steven Universe so, I can't say much about it other than bits and pieces I've heard. I've heard that then "gems" are nonbinary because gems are rocks and rocks don't have a gender. I also saw that they recently released a psa promoting pronouns like "ze/zir". And I've heard that the fanbase is really toxic.

I saw the new She-ra a few months ago after someone on r/TL mentioned the main couple were lesbians.

I personally enjoyed it. However, I have plenty of critisisms for it. They aged down the characters a lot from the original (i.e. from adults to teens/younger) and, even though most of them were teens, they'd act even younger and dumber than that. At the same time, the main couple was so toxic that it's pretty disturbing that it was glorified. One of the characters, Catra, tries to kill her love interest, Adora, pretty much every chance she gets in basically every season execpt for the last one. On top of that, the ending of the show was so rushed (specifically Catra's redemption arc) and it felt like her redemption was absolutely not earned. Adora practically forgives her instantly without Catra having to do much of anything to earn it. Even further, in the final season, Catra tried to abandon Adora because Adora was planning to sacrifice herself to protect everyone and save the world.

The show also had both a background lesbian couple and gay couple. That was fine, not much to say. The only time the show really shows its ideolodical leanings is with one character who's nonbinary. It was a little confusing to watch at first because all the characters refer to this one as "they" but, once you get what they're talking about, it's not that big of a deal. You can also tell the political leanings from the character designs but again no big deal. In spite of it's clear leanings, the show didn't feel preachy or pushy. If a character was something, the show didn't try to justify it or go down an identity crisis rabbit hole. They simply were whomever they were designed to be.

My biggest issue is that the show presents itself as a kids show but it seems more like a late teen/young adult show. I say that because I don't think it's right for children to watch a glorified toxic relationship regardless of sexuality. This is probably the only thing that makes me hesitant to calling it a kids show. I can't think of any other kids show that presents a toxic relationship as something to strive for. Even Plankton and Karen from Spongebob had a far better relationship.

I think it's also worth mentioning that the new She-ra fanbase is very toxic. From my understanding they are on par with the Steven Universe fanbase; incredibly viscious and mean to anyone who doesn't like their shows. The fanbase for the new She-ra in particular are also incredibly rude to the fanbase of the original She-ra. Example, there was a young girl who drew fanart for the original She-ra and people were harrassing her and accused her of whitewashing a character that was 1) originally white and 2) from the original series and not the new one.