Because Democrats want someone who will run the country and Republicans just want someone who will maintain their minority control. We are concerned for the country, they are scared for their very existence and self reflection itself is dangerous for their existence. Basically self reflection is necessary for what Democrats want to do, and it fatal for what Republicans want. So we do it, and Republicans avoid it at all costs. We get a Kamala who we hold to a high standard, they get a Trump who can punch them in the face and they’ll still support him because of the party.