Yeah but it would add localised - and extremely high efficiency in terms of water, yield, etc. - food supply that's more resilient to climate shifts, needs no pesticodes, etc., and for those of us on islands like the UK where we import lots of food it would be good.

Might also help those countries we import from build up more food supply resiliency because thry have more excess. Or massively reduce land use for food ^.^. And a lot of the places food gets imported from or otherwise farmed are also at large risk for climate change, so perhaps using vertical farms or other climate controlled farming techniques would be a good idea for them too nya

Furthermore it makes the supply chain more auditable, so you can reduce the reliance on questionably or very unethically sourced stuff. A controlled environment might also allow for even more automation.

I'm a pretty big fan of vertical farming for lots of reasons though to the point of writing an article on it, so I'm a little biased ;p. The main obstacles are land/building price and energy (and also some techniques for growing staples, though I think that is not a fundamemtal limitation, and I think the other two are solvable)

Edit: also I think it's desirable to return agricultural land to less managed environments like forests. Moving more human infrastructure into cities would enable more of this sort of "rewilding" (though I think that's a bit of a misnomer as environments everywhere have all been fundamentally altered by people, and a lot of people's idea of "nature" is the very sanitised version that avoids the constant slaughter and death, like cityparks and stuff which are actually very human managed - good for mental health, but not really ""nature"" in the same way)