Is being leftist a psychiatric condition?

"The notion that his own society is evil and unjust is the bedrock of the leftist’s vision. Wicked capitalists trample on the poor, the oppressed, and the downtrodden; the leftist appoints himself to rescue these victims. He is a self-styled social redeemer, leading a movement to liberate the masses, even if it results in the destruction of his own society. This political mission provides him with immense moral indignation and, therefore, moral superiority, dispositions from which, in turn, he derives emotional self-gratification. His whole belief system provides him with a sense of belonging; he joins other social redeemers, as well as the victims, real or imagined, who wait for him to break their chains.

Thus, the leftist’s political disposition is a faith that reinforces his personal identity and sense of belonging."

I think the real question is, is it curable?