deportations on the scale of 10+ million are definitely in the hardest category and unlikely to happen. the resources needed are immense, logistics very difficult. and democrats, democrat controlled states will be placing obstacles on the tracks every step of the way with help from old guard republicans and the msm. everything imaginable will be challenged in courts. the courts will become congested and resulting delays could stretch to years. and activist judges will do everything in their power to give pro-immigration verdicts. which you then have to challenge in higher courts when possible, building congestion on congestion. the cultural left will be fighting this all the way. their whole world view turns on this fight. and the optics of mass deportations, like hysterically crying small children will be very hard for the soft-hearted republicans to handle.
Finland