>>279870868The denial of objective truth is a core component of deconstructionism, which in turn spawned postmodernism which is the centerpiece of contemporary culture. Like the other tenets of cultural Marxism, the denial of objective truth is a weapon by which to gain influence and power. A society must have some way of making decisions about what is real and true. When society abandons objective truth as its standard, it is left only with "the consensus" to determine what is true. Consensus is something that can be formed and shaped by experts controlling the narrative. Reality is replaced by wikiality, and those who control the wiki (the narrative, the consensus), control the truth.
Ultimately, deconstructionism is based on Saussurean linguistics, which purports to establish the meaning of words according to their relationship with other words, therefore establishing reality as a closed system where things always refer to other things and can never be true in an objective sense, only as interpretation. This inaugurated the era of critical theory, feminism, civil rights, etc.
K-ON! represents the closing of this era. When Yui says "Fun things are fun," she is saying that objective, non-referential truth exists, that fun things are fun because they are fun, and when you see K-ON!, you see that she speaks the truthโthat, truly, fun things are fun. At this moment, the entire pillar of cultural Marxism, the entire work of the Frankfurt School, collapses like a house of cards.