Nah. Its like be nice, but dont be a fool or a victim. If someone is a douche to others, dont expect them to treat you differently once they inevitably get triggered by some perceived or imagined wrong they blame you for.

You can be kind, but you must also enforce your boundaries. Thats part of having self respect. And you can gently but firmly throw a criminals ass in jail where they cant harm anyone else. (Jail is still a kindness, compared to the execution they might deserve.

Being kind isn't the same as being a doormat.