Authority is a behavior, not a title. Yes there are some mouth breathing lolbertarians who think there should be no government whatsoever, but they invariably get fucked by any number of collectivists to the point the genetic basis for the entire ideology is nearly absent from the human genome. If Trump exercised the level of executive authority Obama and Bush did, everything he said he wanted to do would be done. So then you have people who are leftist anti authoritarians only using antiauthoritarianism when they don't agree with who is in power, rather than the use of authority all together which makes them unprincipled human refuse.