When we only follow laws we like or which are convenient or just enforce them against the 'other side', we have no rule of law. Only the trappings of dictatorship, arbitrary and capricious punishment that violates the oldest precepts of jurisprudence found in the Magna Carta.
Invite lawlessness (anarchy) at great risk. It was from the ugliness of that we eventually grew to have a Republic, where all had Rights, and none were immune to the law.
Anyone who advocates a return to that is no student of history, or thinks they somehow will hold favor with those who hold power, often leading to a life that is nasty, brutish, and short.