Everything I've read has said 'in or near China' which is a MASSIVE area and not precise
I'm not sure what level of precision you want about the exact origins of a 13th century disease. We don't even know for sure where the Spanish flu originated. However, there does appear to be consensus that the plague originated in China. And China is a massive country, so not sure what your point is.
And China wasn't China back then anyway
That's a daft argument. Most modern nation states only date back to the 19th century.
But if it helps you feel like China is to blame for everything, knock yourself out
You knock yourself out with the strawman arguments when you're shown to be wrong. I've never 'blamed' China for anything, it's you tying yourself up in knots here.