And how do you suggest that they enforce it at this point seeing that the courts and the law enforcement are working against them?
Well, for one thing, it might help if they stood up with a little moral outrage and said, despite what the courts are ORDERING, it is WRONG, it is MURDER, it is highly IMMORAL. We haven't heard that yet. We've just heard, "Gee, I tried."
The FBI enforces federal laws. They have the only jurisdiction to do so. No state in the Union has the right to disobey Federal Laws. Greer can not keep the FBI out.
The Americans with Disability Act has been violated:
The Americans with Disabilities Act (ADA),42 U.S.C. Sections 12101 provides that necessary and appropriate rehabilitation services and physical/motor skill therapy may not be denied a substantially disabled patient in the United States of America.
Cf 28 CFR, Ch 1, Subpart B, Sect 35.130 States "Nothing in the Act or this part authorizes the representative or guardian of an individual with a disability to decline FOOD, WATER, medical treatment, or medical services for that individual."