Several thinkers have argued that a healthy society needs not only to protect, but also to encourage dissent.[1][2]
In a well known letter to Arnold Ruge, Karl Marx wrote: "if constructing the future and settling everything for all times are not our affair, it is all the more clear what we have to accomplish at present: I am referring to ruthless criticism of all that exists, ruthless both in the sense of not being afraid of the results it arrives at and in the sense of being just as little afraid of conflict with the powers that be."[3]
Yes, it seems that to be "nice" one must cease and desist from all critical dissent and debate. To be nice, one must say things obliquely rather than directly, or better yet, say nothing at all. One should try to focus on points of agreement and smooth over differences in a fog of blandness. This emphasis on being nice is a form of oppression. Feminists pointed this out in the 70's and encouraged us not to teach our daughters to be "nice" because it was disempowering to them. Now we just want our Buddhists to be nice. This niceness which is being referred to is what Trungpa Rinpoche called "idiot compassion." It seems that it is fine for the Western Buddhist Movement to castrate the power of the Buddhadharma, but if anyone says "Hey, wait a minute, you are distorting the teachings of liberation," then they are branded with the scarlet letter - "not nice."