I know you already posted the petition online, is it too late to suggest that we say "parents of Hong Kong" instead of "mothers"? That would allow for more signatures and give more weight to our case.
Hubby is not a HK registered attorney but I did casually ask him how a class action would work and he said that sort of thing doesn't really exist in HK. He didn't elaborate but I didn't press him because he's fleece me for posting whatever he said on a website. I think it would be better to ask someone locally registered anyway to get the real scoop.