I think that there are a few more consequential differences. One can easily make the case that this is the most divided the US has been since the 1960s. Also, one can see the roots of the current situation in decisions made at that time. Trump is a natural culmination of many Republican racial policies; he is different because he said openly what the Republicans had been saying with dog whistles since Nixon introduced the Southern strategy. The Trump situation also seems to be a very deliberate effort to roll back many of the gains made by minorities over the past 40 years. One way in which Trump is absolutely unique is that he has put forward a foreign policy that undermines most of the post-WWII consensus in US politics. Whether or not he will act on this remains to be seen,  but his anti-free trade, leadership by extortion message is a marked departure and has many American allies reconsidering their reliance on the US.