Back then, opposing authoritarian government and war was progressive left wing, not alt-right. There seems a simple attempt to flip the terminology or simply use it as a generic insult.

Even if you side with the group they describe, don't allow them to purposely mischaracterize you as right wing or conservative, just for being rational or opposing corporate institutionalized authoritarianism. No matter how much they call you alt-right, those positions are left wing progressivism.