I think the protests are not just protests but also a lot of hooliganism and vandalism. It is criminal activity because laws have been broken， people have been attacked including the police. And property has been damaged both public and private property including cars on the road.
Whether it's better employment， a higher salaries， better standard of living， all this can only come with the support of China the mainland itself. And what are they complaining about? To whom? It's not the the west that's going to give them this benefit. If they are practical and realistic， they will know that it is best to negotiate in a very nonviolent way， in a very proper way through the correct channels.
But going by not just demonstrations but criminal activities like vandalism it's not the way that any country in the world can accept. Nobody can accept that. But I would say any comment that the Hong Kong police have done so much is wrong and hypocritical . It is totally unjustified because the police in Hong Kong should match at least the level of threat posed by the violent demonstrators. If the protests are not stopped early they will grow more and more widespread， and more and more violence and then it becomes much more difficult to control.