“Why all of a sudden are we teaching our 5-year-olds to be divided by color?” she said. “They don’t care what color your skin is until you tell them that that 5-year-old’s grandpa was mean 200 years ago.”

Sabrina Tavernise:

Demographics are changing too. Growing numbers of Hispanic people and Asian people from the Marshall Islands call Enid home. The county of Garfield, in which Enid is the seat, was 94 percent white in 1980. Last year, that figure was about 68 percent. The county experienced one of the largest increases in racial diversity in the country over the past decade, 2020 census data show.

Teachers and administrators in Enid’s school system have worked hard to integrate growing numbers of immigrant children. But everyone else interviewed in Enid, including Ms. Crabtree, who is white, expressed surprise when told of the scale of this change. Immigrants tend to live in certain parts of town and work in certain jobs, like at the meat plant, and do not yet have high-profile positions of power.

Still, she could feel that change overall was accelerating, and that was making her feel like she was losing her country, like it was becoming something she did not recognize.

“I truly think that what we are doing is pulling our republic apart at the seams,” she said.

So when she heard about the indoor mask mandate proposal last year in her city, she jumped to get involved. She discovered that she liked bringing people together, people whose thinking she shared. It felt good to learn together, and to belong to this group she was building with urgent purpose. Eventually she made a Facebook page called Enid Freedom Fighters.