"I think it is now far too late to turn the tide and return to the good old days of about a decade ago."
So from as user perspective what has changed from "the good old days" until today?
"There seems to be this strange idea prevalent that the modern world in which we live should be a homogeneous world."
Yes, particularly among the MAGA crowd this is a cherished idea.
"That would be OK with me if it was homogeneously Chinese. But not Homogeneously Indian Culture, I would add."
Really?? You would be OK living in a world that was homogeneously Chinese? Sounds boring, I would rather live in a heterogeneous culture. You could in fact call me a raging hetero!
"I do not think of all cultures the same. I am therefore not an idiot in this respect."