Most of these appear to be vacant lots in the middle of the desert. Not actual churches. Look like properties dumped by estates to non taxpaying entities. I suspect they little value.
To paraphrase the Field of Dreams, "Build it and they will come".
Many years ago people built churches on their property. So they could have Mass said by a traveling priest. For instance my great grandfather did this in NM and the small community had a place to gather and bury the dead. The land the church stands on is in the middle of 320 acres of cattle grazing land but is owned by the Diocese of Santa Fe. It seems to me that many families would like to have their land and ancestors graves back at a reasonable price.
https://www.findagrave.com/cemetery/2685363/palma-townsite-cemetery