I love how people who must be new to America were claiming that oh jury nullification would happen, oh surely their defense attorney would be incompetent to not get at least one person fucked over by health insurance companies on the jury, etc, etc. Exhibit A. The judge is the arbiter of what is and isn't fair including in jury selection and this judge already knows what they want I'm sure. All they have to do in their mind is preside over proving he was the shooter and it wasn't someone else. Then throw the book at him, send him to the worst prison, have the DA and mayor hold a grinning press conference where friendly press asks a softball about the "small minority of extremists celebrating the shooter" to which they reply they're next and that the proles had better learn their place because the truncheon is out and they will not tolerate so much as online joke-threats against the precious C-suite class.
Just more of business as usual two-tier justice system (bourgeoisie and their important servants and everyone else especially proles). Post SA threats against women? Against minor girls online? Sorry cops can't do anything internet isn't real, stop worrying about it even though they sent you pictures of your house and have been doing this for weeks in graphic detail. Post like one joke meme about a C-suite person who lives 3000 miles from you with a guillotine that they never even see? Warrant for no-knock raid signed immediately, terrorism charges prepared, dog shot dead, press announcement of no tolerance made about the raid by visibly angry and stern DA or cop.
Not aware of any though I'm sure there is one, just probably not that huge in scope at the moment. /c/datahoarder might know something of this or be of use. Maybe the reddit version since it tends to have more people.
Unfortunately social media apps like tik tok go out of their way to make it difficult to download and locally store anything you see on them. It's against their interests to let you take content off their platform. There are obviously modified APKs and non-mobile apps as well as websites that allow it but it's generally an annoying process. I'm sure some amount of it is being saved but in the way people browse these things and discover this content via algorithm it's kind of something you then have to go back to on another device to save and download and that's time-consuming and annoying so most people won't do that, or will tire of it after doing so for a bit.
The best hope is that there's some non-profit scraping this, that a couple of people have a day job grabbing and archiving this stuff in an attributable way so that it can be used in future though it's a big job and I'm honestly doubtful this is actually happening given it would seem to have no point. South Africa has presented their case of genocide, that's proceeding but the courts of public opinion are already set for now. You either see it for what it is (a genocide), you believe the zionist propaganda narrative, or you're just checked out. Re-presenting a tranche of videos of this stuff in 5 years would seem to be of little practical value. Either South Africa succeeds with their case in which case additional evidence is moot or they fail in which case it's not going to be reconsidered with a bunch of years old content the provenance of which cannot be proven beyond a shadow of a doubt given its original sources are now gone. It'd be useful for propaganda purposes but to who and where would you spread this when you're only archiving it because it's going to be removed and the platforms its been posted on locked down against the spread of that stuff in future.
Just the same I am sure some amount of it, a fraction is being archived in this way by some group but they may be academics or uninterested in sharing it further for now.