The big corporations with democratic leaning CEO could have moved investment and jobs there.
You could have moved a lot of federal jobs there too.
And with them will come the people that will guarantee better demographic distribution.
The US election system is on the stupider side IMO, but a candidate cannot lose the popular vote, because such thing as popular vote does not exist.
If a big corporation with a democratic leaning CEO moved to a state where the population was mostly republican, then the company would have a workforce that is mostly republican.
Few people align themselves with the company's CEO's values, and even if the company was made up of mostly democratic workers, few people will follow their company to another state. If my company changed states, I'd get a job with a new company, my life just isn't that portable that I can pick up and leave with ease.
...that assumes elections work, which is becoming more and more dubious. Remember that he actually lost this election by popular vote, just like Congress would be in Democratic hands if it weren't for gerrymandering. And I don't think it's entirely unreasonable to assume that this president will be even more brazen about undermining the election process than anything that's come before.