The obvious gender neutral solutions to 'latino/latina' would be 'latin', or 'latine'.

The obvious gender neutral solutions 'fillipino/fillipina' would be 'philipine' or 'philipinian'. Spell them with an F if you want, I don't see the point when you're already anglicizing it by making it gender neutral.

Of course, the radical left aren't interested in using sane-sounding terms like these, because they neither revolutionary nor othering enough. They don't desecrate anyhing, so the left isn't interested.