If the the values of D's and R's were the same, then common sense would be just that, common or alike. Because many of the values of the parties and it's constituents differ; what is common sense for some, are nonsense for the other.
It seems to me D's values are generally more compassionate than R's. Donnie's take on immigration is "mass deportation", (immigrants are poisoning the blood of our country), whereas D's are more concerned with asylum, and paths to citizenship. R's policy on healthcare is a more privatized system that serves people who can afford it, whereas D's would be more inclined to try establish healthcare for all, regardless of economic circumstances.
Donnie is a populist. People, for whatever reason really like him. Incumbents all over the world have been losing elections because of the pain covid wrought on their economies. Donnie kept using the economic pain that the world went through to sow doubt. I guess we'll see how he does this term, but if Musk is correct, the people will see economic pain as a feature, not a bug. R's are all about consolidating wealth among the wealthy, so that's likely what we'll see. If I was rich and an asshole, I'd be quite happy with this election. I don't see help coming at all for those in need. A measure of a civil country is how it takes care of its vulnerable. Trickle down economics has proven to be a fallacy. More money in the hands of wealthy people will not help anyone. They already have enough, and have no desire to help others.