What is xxnn xenophobia?

It seems there might be a typo or misunderstanding in your request, as "xxnn xenophobia" does not correspond to any widely recognized term or concept. If you're referring to xenophobia more generally, it is the fear or hatred of that which is perceived to be foreign or strange. Xenophobia often targets people from different countries or ethnicities, leading to discrimination and prejudice against these groups. The phenomenon can manifest in various ways, ranging from individual attitudes and behaviors to systemic policies and practices that exclude or disadvantage certain groups. If you meant something else by "xxnn," please provide more context or clarify your request.