This is vandalism no doubt and costly but one has to also look at the view from younger generations
Only a couple of people here point out the one law for the rich element here and like it or not biz jets are not really necessary , Very few places are unreachable by airline or surface travel or a combinationand are business deals really that important that people have to use them as opposed to conventional means, if rich powerful peopel had to use airports think how much better the airports would run . Biz jets dont contribute much overal to polution but per passenger they are pretty horrendous compared to airline travel.and a lot of them end journeys in such international trading centres as Aspen, St Barts, St Moritz which doesnt exactly underline their so called critical importance to international business does it.
I think draping posters over them or similar would be fine if they want to protest but paint is obviously very damaging as inded would be jumping up and down on the ailerons but calling for years in jail is just reactionary nonsense, Remember that we can vote, post these commensts on line and live life the way we do because people protested about excessive power and priveldge in the past.