Scores of comments have stated there was no molotov cocktail. The item in the video was supposedly some sort of trash bag. Minus that weapon, it appears Mr. Rittenhouse murdered an unarmed man.

easier to convince a jury that the victim was imbalanced

Fortunately the law in Wisconsin does not recognize "being imbalanced" as one of the criteria for the use of lethal force.

Self-defense is an affirmative defense that a person accused of a violent crime can bring, arguing that their use of force was justified because they were defending themselves. Wisconsin law allows deadly force in self-defense in the limited circumstances where the person defending themselves “reasonably believes that such force is necessary to prevent imminent death or great bodily harm” to their person. Importantly, some states impose a duty to retreat from a conflict, but Wisconsin is not among them. However, Wisconsin does allow juries to consider whether a defendant could have retreated in determining whether the use of deadly force was “necessary.”

https://www.grgblaw.com/wisconsin-trial-lawyers/wisconsin-self-defense-rule