If the government wanted you gone there wouldn’t be this song and dance about getting dna data from a blood bank. They’d just kill you and that would be that.
They can barely agree on a budget. They wouldn't be able to unify against the public, they're too dysfunctional. You'd need a President willing to defy his oath and two other branches on board with him.
Congress is not the agency that does the killing. More efficient ones with practically zero oversight do. See Frank Olson for an example, we only know about that after mkultra was revealed in CIA abuse investigations. His family still is fighting for justice some 60 years after his assassination.