Familiarity and social proximity have their positive aspects, but they also breed contempt. No man is a hero to his valet. Nemo propheta acceptus est in patria sua: No prophet is accepted in his own country. (Luke 4:24) Few bloggers are read by their relatives. Social distance, too, has positive and negative sides. One negative is that people are more ready to demonize and abuse the distant than the near-by. Internet exchanges make this abundantly evident. On the positive side, distance breeds respect and idealization which can taper off into idolization.
What is almost impossible to achieve is justice in our relations with others, near and far, falling into neither favoritism nor contempt, demonization nor idolization. Four extremes to avoid if you would be just.
A. Inordinately favoring one's own; being partial; overlooking or downplaying their wrong-doing. Tribalism. Nepotism. Clannishness. Chauvinism. Racism. Class-identification. Blut und Boden mentality. Example: John Gotti's children thought him a good man despite the fact that his good qualities were overshadowed by his murderous thuggishness. Their blood-ties to him blinded them to the fact that he was an evil man.
The conservative is more likely to make this mistake than the liberal.
B. Contempt for one's own; being impartial in violation of duties to kith and kin; treating them exactly as one would treat an outsider, if not better. A vacuous internationalism that ignores real differences. Example: the deracinated 'open borders' types who will not understand that a nation has a right to its culture and heritage and the preservation of its culture and heritage.
The liberal is more likely to make this mistake than the conservative.
C. Demonization of the other, the foreigner, the stranger. Xenophobia. Irrational hatred of the other just because he is other.
Some conservatives are prone to this. But of course leftists lie viciously when they brand conservative opposition to illegal immigration as xenophobic.
D. Excessive admiration of the other. Idolization of the far away. Idolatry. Romanticization of foreign lands and cultures.
Many liberals make this mistake. The young are more likely to make it than the old.