True kindness cannot be weaponized. Fake kindness, which is based on nothing but self-image of being a kind person, is very aggressive and intolerant to people who are unkind. People who are sometimes called “the social justice warriors” are a good example of this. Their kindness to persecuted groups results in extreme cruelty to anyone who they deem an offender, regardless of the intent. This is not kindness - it’s a desire to be seen as kind and morally superior, most of all, by their very selves. Which is why people on the “offending” side find it very difficult to reason with them - once you take this stance, the cruelty is justified in the name of a bigger “kindness”. There are other examples, but this is the most obvious and well-known one I can think of.