Capitalism. Anything that isn’t bought fresh in the US is LOADED with sugar because food manufacturers figured out that sugar is extremely addictive, and they also buy a lot of politicians so that nothing can be done about it.
The only way this works is if people join. I’ve worked in quite a few right-to-work states. There is a lot of poverty and there is always someone willing to work more for less money. That is also true in the north, but unions already have a foothold here. Republicans also have convinced a lot of people down there that unions are just trying to steal your money.