Well, this isn't the first argument based on a false premise, which included a complete out of contexts line of reasoning, attempting to rewrite the facts to suit a cognitive biases.
The officer at the Capitol faced, all alone, a violent and belligerent mob smashing down a door which lead directly to the congressional legislature and staff he is sworn and has a duty to protect from both parties, as they were narrowing attempting an escape. He had to stop the breaching long enough for them to evacuate. Ashley Babbitt put here own life at risk and no one has ever said she wouldn't have, if successful, open the doors and allowed the mob to reach the congress and it's staff.
Rittenhouse, a self proclaimed humanitarian, training to be an EMT, brought a high powered semi-automatic rifle with multiple round clips to a protest over another, shoot first ask questions later police shooting of blackman, and killed 3 people and wound 2 other. The only person to do that on that day. Not even the police who has the official duty to maintain the peace shot, wounded or killed anyone.
Rittenhouse didn't go there to render medical or humanitarian assistance. He went there to become a combatant. Radicalized by right-wing media which glorifies guns and ethnic social and political repression, to engage protesters with that high powered weapon capable of mass casualties.
Rittenhouse house went there to become a hero. He wanted to post himself on social media as a hero to the cause. That's was his strategy and it's payoff.
Your line of reasoning does fit the fact as they have been presented.