What It Wants Is The Real Estate
If Aussies were to side with the Hong Kong protestors, China would punish them economically. Chinese colonization includes over 500,000 Chinese students studying in Australian universities.
Aussie GDP and Chinese link is at timepoint 7:24, @8:05 dangerous heavy economic reliance, @8:57 communist spies, and is an informative video about the coercion:
Australia's China Problem
'Australia, quite literally, cannot afford to lose China'
Yahoo News 7 Jan 2020 Chinese Nationals Caught Surveilling Same U.S. MIlitary Base Twice in 2 Weeks
17 Nov 2019 Investigation: Why is China on the Move in the South Pacific?
'....two months ago....switched its allegiance from Taiwan to Communist China...."so this is very clearly somebody tailing us"....(@4:12): "Are you happy that your country has switched allegiances from a democracy to a communist state?"....was offered $1 million bribe to back the switch....a new way of doing things, really dangerous'
24 Mar 2019 Our World: Australia's Water Wars
@ timepoint 3:56: 'Just a few years ago these lakes were almost 90% full, but after a decision by the New South Wales government to decommission the lakes for water storage, they were drained dry and this is the result....'
@4:40: ' "This has nothing to do with drought. This is a man-made disaster brought to you by the New South Wales government, the federal government and the Murray-Darling Authority."....residents are forced to rely on bottled water and watch the local wildlife disappear.'
@ 6

'water made toxic by algae.'
15 Nov 2019 Bellamy's Chinese Takeover
(Interesting graphs in this video show how Chinese Economic Hitmen operate.)