However valid your cause you will be buggering up PASSENGERS - these are the ones who will be inconvenienced and out of pocket - the general public again. Easter as well - that's rich.
Your gripe is with your MANAGEMENT but your strike won't cause any of THEM personal financial harm, only inconvenience - which is what their job is to deal with anyway. As managers they are paid to deal with the sort of problems you will give them - they may even bring
PR consultants in. They will still get their fat salaries don't you have any doubt about that.
Have you ever seen a director or top manager personally penalised after any crippling strike? More likely some will get a peerage!
Whatever your cause it is morally wrong to use/abuse your customers in a dogfight with your management. You tell some of the thousands of dissapointed people in the terminal queues over Easter that this is in their long term interest and see what they think!
Edited to clarify that I am not a commercial pilot (PPL) so this posting is from the viewpoint of a passenger.