I think the same is true of other domestic terror violence we've seen. The Civil War is still the worst domestic insurrection in history. The two are not even comparable. That this comparison is even humored shows a major problem.
> The only teaching necessary is some history: even in the darkest hours of the civil war, the enemies of the Constitution never managed to sack the US capitol.
I'm sorry you're being ridiculous. The US capitol has been bombed and parts destroyed by domestic terror groups in living memory. Those attacks were way worse than this.
US congressmen have been shot at by radicalized domestic terrorists as well.
Considering (1) Jan 6 resulted in minimal property destruction (certainly no structural damage) and (2) no politician killed (the only person dying directly as a result being Ashli Babbett, a rioter), it's safe to say that the bombings were worse (due to worse property destruction) and the shootings were worse (due to imminent potential of death to the victims)
Perhaps you have some learning to do.