Specifically, in practice, trying to aim at prosociality tends to produce oppressive environments
I don’t think this is really true. I think that lots of authoritarian-minded people nowadays try to use pro-sociality and vague ideas of “social progress”, “a safe and welcoming community for everyone”, “a well-tended garden” and the like as cover for what are really oppressive environments (often focused on enforcement of petty etiquette and narrow, cultish shibboleths, to the detriment of actual, ethically significant issues). But supposing that “trying to aim at prosociality tends to produce oppressive environments” amounts to arguing that open and non-oppressive environments are inherently “antisocial”. I see no reason to assume this is the case.
I don’t think this is really true. I think that lots of authoritarian-minded people nowadays try to use pro-sociality and vague ideas of “social progress”, “a safe and welcoming community for everyone”, “a well-tended garden” and the like as cover for what are really oppressive environments (often focused on enforcement of petty etiquette and narrow, cultish shibboleths, to the detriment of actual, ethically significant issues). But supposing that “trying to aim at prosociality tends to produce oppressive environments” amounts to arguing that open and non-oppressive environments are inherently “antisocial”. I see no reason to assume this is the case.