Have you heard of BOE?

Permanent burn-in will happen with static images, but it happened on CRTs too and those once dominated the world. As long as it is infrequent, it is probably not much of an issue. Newer OLEDs, such as Apple’s tandem OLEDs, minimize the issue.

I am not sure what you think your point about black levels contributes to the discussion. Higher black levels would only favor OLEDs thanks to their inky blacks.

Display Fabs have primarily been located in Japan, South Korea, Malaysia, Thailand, and Singapore for decades.

The economics of display fabs are even worse than those of IC Fabs, because of how displays have been viewed as commodified for decades, and because they are not viewed as a "critical" or "dual use" technology, so the same level of industrial policy for this never existed.

Both India and Vietnam recently tried to subsidize Display Fab investments, but the PLI never got significant takers because aside from OLED, the rest of the display fab market is heavily commodified, and Samsung+LG largely finished capacity investments 2-5 years ago, and commodified vendors like Sharp can't justify the capex given that Displays are not treated as a critical technology.