I think "permanent" in the sense of "until the state collapses and the government, and the nation, ceases to exist" is a fair use of the word.
Of course, people can and do make mistakes. The fact that someone chooses to use a word to describe something does not mean that it's necessarily an accurate description. They may be lying, or they may simply have judged the situation incorrectly. How many startups say "we are the next Google"?
Not everyone who disagrees with you is merely ignorant of the superior wisdom and knowledge you have attained.