To be somewhat fair, automation isn't cheap. Machines need repairs and advanced machines are expensive to fix. Farmers in bumfuck nowhere have to fix these things themselves or hire people to do it, which is more expensive and time-consuming than hiring illegals to do cheap manual labor.
What I find amusing is all the liberals who chant about the importance of farms and the importance of fair wages, but abandon these notions when it comes to illegal immigration. You would think they'd talk about expanding farm infrastructure and bailing out farms, but no. They want to keep slave labor.
By the way, there are a HUGE amount of new agritech and agriservices companies trying to address these issues and they could use the free advertisements... but that means also getting rid of the cheap nannies, the cheap maids, and the notion of a racial voting bloc.
Even further down this wacky rabbit hole, Hispanics and immigrants are polling with MAGA. I was saying for years that mass importing Catholics and making their entire platform about progressive social issues would bite Democrats in the ass and I was right.