This will result in thousands of people in cages for undetermined amounts of time with no due process. It's unconstitutional whether or not you're here legally. Democrats are not forcing Republicans to build outdoor prisons to house farm workers and their families.
Not to mention that there are a number of people getting caught up in this that are in the US legally, under asylum claims or birthright citizenship.
Democrats attempted to pass immigration reform twice in 2024 and Republicans shot it down for reasons including the asinine lack of border wall funding.
The impasse is largely that Democrats want to provide a reasonable path to citizenship for people who have already been living and working here (many of whom have been here for decades and have american-born children). Republicans will not budge and chose to impose suffering directly.