It's considered bad taste to criticise other countries for that which your home country is.

I'm both an Australian and NZ citizen. One of my parents is Australian and the other NZ.

Not that my ancestral line matters at all the legitimacy of my views. I spent 30 years living in Australia and I'll point out all the flaws I want.

Otherwise, nobody in Australia should ever criticize China (or insert any other country). But that's not the way the world works, nor the way I want the world to work. Everyone should be held to account. We don't exist in a vacuum.