The damage of the paint into the engines, water based or not will write the engines off, add in the screens, the ports and the full strip down to check paint hasn't made its way into the control service actuators, fuel tanks and avionics, then these aircraft could become uneconomically viable to repair.
The actions of these cretins, JSO and others are going to do nothing for the greater good of the planet as it turns people away from the message.
If we really want to stop man made climate change (if it is such a thing) then we have to reduce the number of feet on the planet. Nigeria's population is growing at 5%, Iran has mandated that it wants its population to grow from 80million to 150million in 30 years! Then we are doomed.
Countries need to stop chasing growth, the rich need to stop avoiding paying tax, everyone needs to do their part in tackling pollution, women need to be educated, religion needs to be ridiculed - bring all these into play and the worlds economies will level up, the planet will be healthier and we will all be a lot happier.
(As an aside, countries chasing growing populations are the poorer and more despotic regimes with theocratic leadership. Keeping women down.
Imagine running a country where 1/2 of its brain power is not used for anything other than cooking, cleaning and procreation?
That is why the West is doing so much better, because generally women are seen as equal to men.)