Treason is the only crime defined in the U.S. Constitution. According to Article III, Section 3:
Treason against the United States, shall consist only in levying War against them, or in adhering to their Enemies, giving them Aid and Comfort. No Person shall be convicted of Treason unless on the Testimony of two Witnesses to the same overt Act, or on Confession in open Court.
Does the fact that January 6th, 2021 insurrection was not done on behalf of an enemy nation constitute “levying war”? Why yes Ophelia, yes it does.
Levying war isn't limited to formally declaring war. It includes any forcible opposition to the execution of a public law. Such "forcible opposition" ordinarily requires actual use of force by multiple people with the common purpose of preventing some law from being enforced. Weapons aren't always required; sheer numbers can be enough.
It’s hard to see how the above paragraph does not exactly mirror the insurrection of January 6th. Somewhere between 800 and 5000 insurrectionists stormed the capitol (fulfilling the requirement that it is by multiple people), calling for the heads of the vice president and members of congress in a desperate attempt to overturn a presidential election. Police were attacked and beaten, entry ways were forced open, glass doors and windows smashed (fulfilling the requirement that it must be forcible), all in an attempt to halt the execution of a constitutionally mandated electoral certification (fulfilling the requirement that the purpose is to prevent a law from being enforced) and it was all captured live and on camera by news media and millions of eye witnesses (easily fulfilling the two witness requirement).
It literally fulfills every single aspect of the crime of high treason. So while the Justice Department has declined to file treason charges, or even sedition charges against the insurrectionists for reasons of prosecutorial practicality, make no mistake. They know, and you should know that this was in fact treason.
We here should be on a mission to call this what it was, to never let the republicans or any others who supported it forget that it was treason, we know it was treason and it will always be remembered as treason. They, one and all are traitors to our country as they have chosen to support treason over the constitution.