Anti-patriotism is the ideology that opposes patriotism; it usually refers to those with cosmopolitan views and is usually of an internationalist and anti-nationalist nature as well.
[1] The idea of multiple cultures intertwined has also been questioned as anti-patriotic, but mainly in smaller social communities: colleges, universities, etc.
One of the many arguments is based on the Confucian value of empathy: "I am as convinced as Mencius that any man would rush without hesitation to rescue a child who was about to fall into a well... A human being moved by such selfless love and charity does not pause to think whether the child is a family member or a close relative.
Karl Marx famously stated that "The working men have no country"[10] and that "the supremacy of the proletariat will cause them [national differences] to vanish still faster."
The same view is promoted by present-day Trotskyists such as Alan Woods, who is "in favour of tearing down all frontiers and creating a socialist world commonwealth.