Absolutely.
Respectfully, I say absolutely not.
The notion that diversity itself as a goal is politically correct balderdash.
What makes the modern approach to diversity in America "a good thing" in and of itself?
What meaningful "good things" has diversity brought to improve our quality of life beyond what we would otherwise experience?
What advantages and benefits does a modern diverse population bring to a neighborhood, village or town?
What is the basis for thinking that a polyglot population of people who do not hold the same values, think the same way, have the same basic goal and aspirations and pull in the same direction is superior to a more homogeneous population?
The promotion of incompetent, uncaring people may improve diversity but what does it do to improve an organization?
What does the importation of millions of skillless people who cannot support themselves and who end up on welfare and food stamps do to make America a better place?
How does the importation of muslims who despise America and Americans qualify as "a good thing"?
What does the importation of tribal Africans, Haitians, illegal Hispanics do to strengthen America and make it a better place for Americans to live?
A free country of 300,000,000 people is probably going to have some "diversity" and should.
Whether or not a mix of smaller, more homogenous countries is really better, massive, homogenous countries can get stagnant and uninventive.
They can become too inwardly focused and uncompetitive, too lumbering and unresponsive to changing conditions.
A large country that aspires to lead technologically has to draw talent from a variety of sources.
I don't go in for the whole "diversity" racket, but you might consider that your indictment is exaggerated in some respects.