Although I might not always agree with Chaim, His messages are always well thought out and presented in a logical and understandable format. This is important as it allows people to think about the issues raised and have that facts to debate them.
If what a person has to say is presented well, there is no need to attack. If you are unsure of your own mind and belief, then you attack out of need to convice yourself. I guess peace now is not too secure in their own point of view