It's interesting when you try to compare this to 9/11. The thing is that I think it's undeniable that COVID has a greater effect on every single American than 9/11 did simply because of how contagious it is. This also has a potential impact on every single person around the world.
Then again, you can't actually see the coronavirus, which leaves some skeptical. On 9/11, the was very visible evidence of an attack on our Nation. And an attack on our country is a personal attack to many Americans.
These certainly aren't a 1:1 comparison by any means, but they are both events that have radically effected the our country/the world. You can't say one is worse than the other because one is a disease and one was an attack. But how people have responded to these events is what I find interesting and I think, in most cases, it's actually fairly similar.