Dissolve ICE, dissolve DHS, impeach Noem and prosecute and or bar every single ERO agent from future public service.
But that's not who they're going after, it's everybody, with a focus on ethnic cleansing. It is no longer hyperbole to compare what's happening now to Germany in the 1930's.
This is not yet something most Americans have caught onto. The DHS made a tweet fantasizing about deporting 100 million Americans (https://www.huffpost.com/entry/dhs-100-million-deportations-...) - which is roughly what deporting all non white people would look like. And Elon Musk posts white supremacist content daily - and I mean this literally. For example he called for “white solidarity” (https://people.com/elon-musk-shares-startling-post-endorsing...) and has also repeatedly called for remigration which is literally defined as “ethnic cleansing” (https://en.wikipedia.org/wiki/Remigration).
There will be zero accountability because the Democrats also need the help of those manning the federal machinery to implement their own programs. Even if they might be using it for far less reprehensible things. Civil service reform assures us of that -- it's almost impossible to fire most civil servants so best to just negotiate to overlook misdeeds in exchange for them implementing your campaign promises.