It’s practically a cliche for lib musicians to hate their country and work that hatred into their music. Look at Rage Against the Machine, my favorite go-to dipsticks for these examples.
It ‘guarantees’ their place in ‘history’ under the ‘any press is good press’ philosophy. RATM is full-on anti-American/Communist in their lyrics and an icon of anarchists everywhere (cognitive dissonance aside), RW hates his British heritage, both profit handsomely from the very things they claim to ‘hate’, go against their stated philosophies and laugh all the way to the bank.
Oikophobia, hatred or fear of ones own culture, is the ersatz sophistication of the intellectually vapid and insecure. It is the equivalent of a teenager belittling his family and friends to look good for the cool crowd.