I know several fellow southerners and midwesterners who are working at large tech firms out here. No matter how much we may love where we come from, there's simply no realistic avenue for us to go back.
Places like Kentucky already have huge tech talent pools, but the workers are currently in exile in the coasts. I'd imagine if these states focused more on bringing tech firms to their state, they'd see a lot of that tech talent return home.
This article in the Herald Leader explains and give some numbers to what you're saying https://www.kentucky.com/news/business/article181564581.html Supposedly some of the reason the group was pushed by some larger employers in the area that were hearing potential employees were turning down offers because if the job didn't turn out well in the long run there weren't many alternatives.
Obviously I get hit with dozen different taxes in Seattle, but I'm also able to reap the benefits like decent public transit and well maintained roads/sidewalks. I seriously struggle to understand where my taxes went in KY. It's a pretty abysmal situation.
Right now they're taking millions in gov. money to train a small amount of people... but Kentucky graduates many more people with degrees in CS every year, by about an order of magnitude. There are basically no "good" software jobs in the state, so a lot of the good graduates leave to go work at Amazons and Googles. Training local talent is good, but you have to have more jobs than Interapt, OpenText, UPS, and GE to cultivate a local tech industry.
What I think Kentucky should do is focus on brining remote workers back, for now - once there's a strong local talent pool, then you can begin courting businesses, not vice versa. I know a guy who went back to care for parents while keeping his $200k+ salary, which makes you pretty rich in Kentucky terms, and also provides a huge tax benefit to the state. I know lots of people at big west coast tech companies that would like to take their west coast salaries back home, but as is, I don't think any of us would go back to work at Interapt.