People who were there destroying property and such, easy to say, lock them up. But it will be hard to prosecute someone who just walked in as police moved barricades allowing access, who posed no threat and mingled with the police for selfies.
I agree on prosecution except those in pictures taking property or who entered into offices or walked onto the floor. the Rotunda is actually a public space so walking and occupying the rotunda would have had the same level of those that entered the Hart building during Cavanaugh hearings.
However, when you enter the chamber floor which is restricted and enter offices, you are in a differnt world of security breach and if you are on camera you can be arrested and convicted (minor felony at best so doubt they will see real time).
The other issue is the intent of all of those who did storm and break windows to enter, 100% ok for employees seeing your face screaming and yelling to decide if they want to fire you. I think there were videos of people fighting police and breaking windows and stealing stuff. Those people are fair game versus those that simply walked through the Rotunda or congregated outside.