If this was a one time event, then I would say that it's just the actions of one person who doesn't understand human nature. Unfortunately, that does not seem to be the case. In many chariedi communities in Israel, people seem to take the negative approach to kiruv. Rather than trying to reinforce in a positive manner why people should keep the mitzvos, they respond in a negative manner which, in all likelihood, destroys any chance of their message being heard. I highly doubt that anyone who had a rock thrown at their car on Shabbos is now keeping Shabbos because of that rock (or at all). I think the chances of someone keeping the mitzvah of tznius (however they choose to define it) because they've had acid thrown in their face is are infintesimal. I'd be willing to wager dollars to donuts that no one who was on the El-Al flight that was disturbed by a man who didn't want to see a movie is any frummer today because of his example.
Now, I'm not casting any judgements on the chareidi point of view regarding the requirements of tznius, not watching movies, keeping Shabbos, etc. What I am making judgements about are their methods. I don't know why they seem to think that the enforcer's role is the best one. The enforcer's role only works when there is no other option - but in Jewish communities almost anyone on the globe today, one can always opt out (i.e. cease belonging to the group, or being frum altogether). So, forgetting for the moment whether their goals are right or wrong, their methods are clearly the wrong ones to use.
Therefore, as a public service to the chareidi community in Israel, I would like to offer the following guide:
Instead of throwing rocks at cars on Shabbos:
- Line the roads when a car goes by and sing Shabbos zemiros.
- Hand the drivers literature about the beauty of keeping Shabbos.
- Invite them to come spend a meal or a Shabbos afternoon with you.
Instead of going into movie theathers and shouting "Shabbos! Shabbos!" at the moviegoers:
- Stand outside the theather and invite people on the ticket line to come home with you for a Shabbos meal.
- Invite them to come to your house or shul after the movie for a friendly discussion on the beauty of Shabbos.
- Describe to them how keeping Shabbos is much more meaningful on many different levels than going to a movie.
Instead of attacking women and setting fires to stores for violations of tznius:
- Organize an economic boycott.
- Educate people about the importance of the mitzvah of tznius.
- Explain to people that it's not merely about keeping "women in their place" -- tell people that tznius applies to both genders in various regards.
- Encourage people to innovate new fashions that meet both the letter and spirit of the laws of tznius.
Instead of looting electronics stores for selling MP3/MP4 players:
- Organize a peaceful economic boycott.
- Educate people about how bad these devices are with the goal of eliminating demand.
And on and on. In other words, find a peaceful means to get your message across. Now, you might ask (and rightfully so) how many potential Shabbos drivers will stop and agree to spend a day with a chareidi family? I agree the answer is not many. But there are still two advantages to this solution: 1. However few, the number of people who pull over and stop driving will be greater than the number of those who continue driving (and speed up, compounding the issur of driving on shabbos); and 2. Even if no one agrees, you're doing far less harm to the cause of Shmiras Shabbos by following my suggestions than you are by throwing stones.
In short, I ask you to keep this in mind: a person is responsible not only for his or her own sins, but also, to varying degrees, for sins that he or she causes other people to commit. I would venture to say that by pushing people further away from keeping the mitzvos by these actions (both the people who are the victims of these actions AND those who might have chosen to become frum but now chose not to because of your actions) you are doing far more harm to yourself and your standing in Heaven than if you simply left matters alone.