Comment: No.

Standing, or not, for our Anthem is a PERSONAL CHOICE, that does NOT HARM AMERICANS.
Nowhere in the constitution, or even our laws, does it say that all must stand for the anthem or salute the flag. 
I tend to think it is disrespectful (akin to those burning our flag), BUT, that is freedom of speech, and in no way harms us.

OTOH,
Traitors would be those that out our spies, such as Valarie Plame.
Likewise, traitors would be those that cut deals with ENEMY NATIONS for getting help in getting elected, such as Iran hostage deal, along with current Russian case.
Look up LOgan Act.
reagan, and now Trump, were/are TRAITORS of the WORST KIND.

Hopefully, ppl will learn the difference between having a right, and committing treason.