Regardless of any ethical considerations you may or may not have about the affected group: where does it lead if exclusion reaches a critical mass in a largely privatised society, making it impossible for a significant number of people to acquire necessary goods or services?

What exactly would your ideal world look like, and how would one prevent it from devolving into groups segregating by increasingly precise identity- or ideological markers? How would this affect societies and economies at large, if we fully reject the paradox of unlimited tolerance of intolerance? Have you ever tried discussing this with likeminded people and were they able to offer satisfying solutions that could withstand logical examination without requiring religious or otherwise tribal substitutions?