Well, indeed. In my experience it varies very widely and pretty much follows the pattern you see everywhere else - intelligent, curious people with good job options tend to be less concerned with patriotism; the less fortunate find solace in it.

The most loudly and irrationally patriotic chinese person I know is from guangzhou. Still wants to move away though of course, what's a little cognitive dissonance between friends?

Then, there are also people with memories of what happened in the 1st part of the 20th century.

And if Fujian somehow became a part of Taiwan, you might not notice much difference in CPC support between the province and the island.

And if Fujian somehow became a part of Taiwan

Parts of Fujian are claimed by Taiwan.

A special case to be sure.