Could have asked what do wars get us in the 1930s - and the answer would be: with the United Kingdom? Not much ... With Nazi Germany? Quite a bit ...
Not saying china is Nazi Germany but if you ask the question in the abstract without context then it will never really have a consistent answer.
My personal view is that the Chinese regime must fall. I would be in favour of dropping most immigration restrictions for any chinese citizens. If you cannot topple the regime you can remove it's people.