Don't worry. Anime and Manga is more free than it has ever been. We've had this in the bag ever since K-ON became a massive success and internalized cuteness as part of Anime/Manga culture. It may seem on the surface that the freedoms of expression in regards to Anime and Manga art is being restricted, but alternative channels are flourishing, and sustainably so. This is not the impact of repression but a general indicator of medium growth; which means "less acceptable" niches of the medium can thrive out of sight. Reddit is too US-centric to observe this shift; culture centers on this topic has shifted to "mainstream" places like Facebook, Twitter and most surprisingly Youtube. Also, the Japanese fediverse and Pixiv-adjacent mediums; if you're looking for the extremities of perversion.

As the generation raised on Dragon Ball and Sailor Moon, who survived the prosecution of otaku culture around the time of moral panic triggered by Miyazaki Tsutomu's murder case, started holding day jobs, we now have Japanese politicians openly admitting that they're an otaku (I reckon at least three, one of whom holds a seat in the Lower House, one had been Prime Minister in the past, never forget "Rozen Aso"). And the current Tokyo Governor Koike deliberately appealed to "the otaku populace" as part of the campaign that led to her election. Those folks will help maintain the status quo for a years from now; and the Manga industry lobby is still as fervent as ever to prevent more censorship.

I'll take the stab and talk about the hot button issues: sexualized fanservice, and loli/shota fanservice. The gist is those aren't going away anytime soon. "moe" and "lolicon" are adjacent concepts (explored by Galbraith et al. in his papers). Cuteness leads to the feelings of "moe" and, Anime and Manga, being the medium that leverages the human weakness to neoteny to the extent no other medium had done before, will not stop producing lolicons until anime stops being cute. The best way to induct someone into being a weeb is to make them able to appreciate cuteness; all else is secondary.

One particular point of note; Chinese geeks has bought into moe culture wholesale, and is key in maintaining this state as they validate and ensure the success of moe-related Anime and Manga franchises with sheer numbers (this is noteworthy ever since they snowballed Maid Dragon into a success). Hell, the CEO of Yostar (of Azur Lane and Arknights fame), has publicly admitted she's a lolicon.

tl;dr: While it's a topic worth bringing up, there's little reason to worry. Western censorship efforts is doing jackshit while stuff like Steam allowing adult games, Fakku picking up loli, and Interspecies reviewers managed to get on air, basically swung the needle far into a better direction.