Bump stocks are an odd novelty, an accessory. If people are actually drawing lines in the sand over bump stocks as some has claimed it would probably be over incrementalism. When liberals cannot do something in one fell swope they peck at it one chip at a time until they eventually get what they want. Bump stocks is another small increment not to give them. Like someone on here said to the effect of 'give them that little thing and they want another and another'.