Is there any reason states can't maintain their own ICE that handles illegals and human trafficking?
Texas is about to be in dire need of such an agency. Other states too, undoubtedly.
Beyond, they can spend $40 million to "fortify" the State Capitol with 74 more troopers, bomb-sniffing dogs and panic buttons for legislators. It doesn't seem a stretch to spend that sort of money in every major city/region to tackle the detainment and exportation of COVID infected illegals that the Federal Government is going to set loose.
Seriously, is anything stopping them from doing this?
Immigration policy and enforcement is federal jurisdiction.
Arizona got sued under Obama's admin for attempting to enforce immigration policy.