A quick and easy check on locations of Orthodox synagogues in the USA reveals they are only clustered in very high-density populated urban areas. Places where antisemitism is high, where Constitutional rights of individual Americans are more restricted, high crime, high drug abuse, gang activity on the doorstep, high food and housing prices, on and on.
The safest area I've seen a synagogue in was Portland in 2011, and we saw what that became in 2020. There was one Jewish farmer at that synagogue, who lived a little ways out and commuted to the shul before Shabbos with his family in an RV every week.
In many rural areas there are Amish families, far more isolated and insulated that Jewish families, and they thrive. People accept them just fine. Muslims are sometimes in the community and are also accepted. Hollywood seems to perpetuate a number of myths about people in farming communities. Those stereotypes only exist in movies now.
It wouldn't even take 100 families with creatively-arranged acre plots, some even running small farms, to setup an eruv, synagogue, mikveh. And in these areas there are slaughter houses serving adjoining counties who would likely work with a small kosher slaughter house for selling the non-kosher meat that inevitably is produced. Not a lot of dining choices, but a family could easily eat kosher from the grocery store. Chabad centers are usually close by at the nearest university.
There are so many agrarian mitzvot you could do here that are impossible in the high rise of Flat Bush or wherever. Such a better quality of life. And since Noahides were often devout Christians, you're likely to find them there.
So why don't Jews farm (or live in farm-capable areas)? Even if you didn't farm, the quality of life is so much better in those areas. Why not?