What's the universal theme of The Metamorphosis by Franz Kafka ? 2 examples

One theme of the text
is that capitalism allows for, perhaps even encourages, the exploitation of
workers. Gregor keeps his job as a traveling salesman so that he can pay back his
father's debt to the boss. He also turns over his entire paycheck to his father for this purpose
as well as to manage the family's finances. Rather than use every spare cent to pay back the
debt so that Gregor can be freed of this obligation, his father actually saves a good deal, and
this means that Gregor will have to work longer. He is ill-treated by his boss and manager, and
he is exploited by his own family (none of whom work while he does).

Another
theme of the text is that art has the power to unite and inspire the working class
to throw off the yoke of exploitation . Consider Grete's musical performance in
front of the three snobby boarders. The family's...