Are there any arguments other than popularity that singing national anthem does not count as an idolatry or Pagan practice or worship of False Gods?

I want to know what are arguments that singing national anthems do not count as worship. Public perception and interpretation is not an issue, if public perception equates murdering child in womb by mother as form of freedom, abortion does not loses it status of sin. So, without using public perception and secular interpretation or popularity as argument, can it be proven why singing national anthems does not count to worship as there are even idols representing countries like Germania, Motherland Russia, Marianne, etc. This practice of representing justice, freedom as idols is Pagan. Whether, its popular does not mean it would lose its Pagan origins. Even after this why would a state require praise by its subjects to sing its glory daily in some way or form. Basically, I am seeking for any Christian sect answer that has zero issues with singing national anthem. (So, not a sect directed question but still why?) **Does present acceptance of anthems also imply approval of anthems in past which involved praise of pagan gods in ancient times? Presently, they are of secular nature** (Not a slippery slope even in World War II there was anthem for worship of imperial Japanese emperor, ignorance to historic facts would not justify a cause despite its popularity)