OP, why did you editorialise the title? Much like the other commenter I was initially offended on Uematsu’s behalf, but after clicking the link I noticed the original headline was:
How Final Fantasy maestro Nobuo Uematsu legitimised video game music
Those are all factors, and brainwashing is also a problem. But beyond that, Trumpism is to a certain extent the logical conclusion of the American culture. He represents a perverted yet unabashed and clear representation of the American Dream - at least the illusion of Trump does.
The me-first thinking, the worship of capitalism, the shameless revelry in gaudy displays of tasteless wealth - it’s all there. It’s completely unsurprising to me that someone like him would appeal to a lot of Americans. There are a lot of people who idolise and wish they themselves could be like the image he projects.