Australian-Chinese diaspora tend to be fairly pro-PRC. During 2008 Beijing Olympic flame rally Australia is one of the last steps and after seeing all the harassment in other countries like France Australian-Chinese turned out in force in Canberra to protect the flame. On that day Canberra was a sea of red flag and I'm told by my friend who went of all the times she sang Chinese national anthem that was the one time she really got the feels singing it. The Olympic torch went around with no issues on the Australia leg.
And of course last year when Scott Morrison lost his job as PM the Chinese community overwhelmingly voted against his party. My parent's electorate, one of the safest seat for the Liberal Party and with large Chinese population (full of Chinese small business owners who traditionally voted for Liberals because they think they are fiscal conservative) lost for the first time in decades and an independent was voted in because even thought they like how Liberal is pro-business, aren't no one want a taste of Zyklon-B shower.
I think it's to do with when your local Chinese diaspora arrived. Australian-Chinese are mostly from mainland after the economic reform, my family included and so they generally have a positive view of PRC. The earlier arrivals mainly from Hong Kong prior to 1997 tend to view PRC negatively but these days they are outnumbered by mainlanders. Pretty much all the ABC I've meet that came from Taiwan are all super blue and generally pro-unification. One even told me specifically they migrated to Australia from Taiwan because they've had it up to here with the greens.
The many generation old Chinese migrants that originally came during Gold Rush days are a very small minority, from what I see though they also tend to be more pro-PRC than against because they think CPC is doing a good job making China into a strong country so that people no longer needed to escape famine like old China.
The Malaysian-Australian-Chinese and Singaporean-Australian-Chinese and others that came by the way of SEA tend to be really pro-PRC, perhaps even more so than mainlanders. The Malaysian-Chinese old man that I use to work with in the office was really impressed with all the developments back in his Fujian home down every time he goes back and he thinks CPC was far too merciful when they cracked down on Xinjiang.
For the US where the diaspora is made up of many more distinct waves reaching further back I get the feel each wave of diaspora don't really see eye to eye on issues, and US is only too happy to use divide and conquer on them.
