Hostility to China can be interpreted as like hostility to Russia, can't it? About a country and a system of government rather than the race of the people living there.
If you approach everything with the same issue in mind, the risk is you will see the same issue everywhere.
I see those t-shirts as more about poking liberals in the eye because they see racism everywhere, and not an attack on the racial characteristics of Chinese people.
The WHO says that the COVID-19 virus emerged from China. The world calls the Kent variant the UK version of COVID. There's another from Brazil and another from South Africa. It seems to me we like to distinguish viruses by where they come from, rather than call them by their scientific names.
So this sort of thing doesn't bother me so much. It's about the GOP-Dem divide more than anything. Calling it Chy-na is Trump's accent, I presume - so there's also a Trump follower element to it, but folks can do that if they wish to.
Attacks on Asian people for the colour of their skin or racial characteristics are a growing problem, but a different one, I suspect.
Question. When Americans say Asian, do they mean people from anywhere in the continent of Asia (eg Israelis, Mongolians and Sri Lankans), or do they mean people from a particular part of Asia?