I understand the desire behind it is to bring justice to the people who have been hurt by Watchtower and to protect other people, but do you think it is right to willfully break the law to get this accomplished?
My two cents: My policy is that not everything legal is just or fair. The WT has no interest in following the law, and has no problem having their members break the law over their interest. They have led people to believe that it's OK to die, to make their most important life decisions regarding career, work, marriage, sex, education, and health care based on lies that they tell, and assume no responsibility when people suffer the consequences of their bad decision making because of them.
They are dirt bags. They do as much as they can get away as possible. So you tell me, are you ok with them bending the rules (at best) and doing as much as they can get away from?
Now, about activism, thinking of the activism I've gotten involved, without civil disobedience and doing acts that are illegal, many times change doesn't happen. That said, it really depends on what kind of illegal act we're talking about. Opening fire in a public space to make a point, nope. Entering the White House naked with my coworkers to raise awareness, yes. A friend of mine proposed a massive poop-down in front of Trump Tower here in NYC, nope, but not necessarily because I'm against it. Going late at night to areas where gay men have anonymous sex to give them condoms, yes. Marching in protest of something, yes. Blowing a building full of people, nope.
Under the word "activism" falls a lot of actions, event and things that people do, and not all of those involve illegal activity, and some of it does but it depends on what kind of infraction one is committing. Then there are the number of ridiculous laws that have been passed that people may not even know that they are breaking. Just google "dumb laws".