Tom, the problem is their duty is not civilian law enforcement and that is what they are being used for in addition to rounding up "illegals". And they have been rounding up people that are legally here and illegally revoking their status and wisking them away before they get their due process a violation of their constitutional rights and this is often done in violation of existing Federal Court orders.
For years conservatives (including you) have parroted the line that they don't oppose immigration when people come here if they play by the rules yet that is exactly what they are doing violating the US Constitution and court orders to deport people that are here legally.
If you can't perform your core function without ignoring court orders and violating the US Constitution you're nothing more than a rogue agency staffed with goons and thugs. I'd suggest a lot of these blue states adopt stand your ground laws so when these goons get violent they can legally be pumped full of holes by the good guys with guns.
And if you are honest you have to admit Trump is using them as his personal goon squad to intimidate blue states as I suggested he would prior to the election. All you MAGAs here laughed and said I was full of shit
Trump made comments about making nice with Minnesota and then he sent brown paper bag Homan out there and he demanded the Minnesota voter rolls as a condition of removing ICE. Which lays bare that ICE isn't there to round up "illegals". The whole point is to seize the voter rolls.
The Trump administration has already lost in court on that issue. The ruling was no state is under any obligation to turn their voting rolls over to the Federal Government. Pass a stand your ground law and make it open season on ICE when they engage in violent behavior. That would be one hell of a deterrent. If they want to live a thugs life they should meet a thugs end.
I will leave you with some words from the late Charlie Kirk, “The 2nd amendment is not for hunting, it is not for self protection. It is there to ensure that free people can defend themselves if god forbid government became tyrannical and turned against its citizens.”