Han is the cultural race/ethnicity in mainland China. [0] It's about 92% of the population. So that's a lot of people. Is China trying to sure up its borders? Yes. Is China out for world domination, I really don't think so. Every single one of my Chinese friends is about as sweet as they come. China is the new mystery to the West, and I don't think people in the West really understand them. The amount of growth in China is outrageous. We've outsourced so much there, and then have a go at them for stuff we don't really understand.
I think GP is right in ways. I think there are some nefarious actors in China running the same plays from the playbook written by the Anglosphere war powers, but to lump it all in a say 'China bad' is, in my very under-read / under-experienced, opinion, a terrible thing.
他们很好 - Hope I've got my characters right! Tāmen hěn hǎo
Even the language isn't like ours. It's more direct and blunt.