Ah, the next generation of gatekeeping is there. More radical than us olde gen z, amirite?
On a more serious note, glossy diet veganism has serious issues, but missing radicalism is not its biggest problem. Anarchism, just like feminism, is not determined by optics. Don't get me wrong, I like the militant punk aesthetic as well.
Non-glossy vegan anarchists post on IG too.
I'd argue that one of diet veganism's problems is its coupling to lookism where veganism is seen as a tool to achieve body control.
On the other hand, I doubt that symbolic animal liberation can recruit activists or act as help among many diet vegans as long as this gatekeeping (except for honey, ie veganism itself) exists.