Nixon was paranoid, calculating, and cold, but he wasn't pure evil. He was also infinitely smarter and accomplished many positive outcomes with China and the Cold War, excluding Vietnam.
Trump is flat out the devil, Satan personified in every respect.
I too was born after Nixon, but I have read presidential history at a level that would be considered torture in 124 countries. Nixon isn't even in the top 3 worst Presidents historically, and I would argue that Nixon was significantly better than GW Bush.
Trump is the worst. 80-90 percent of all COVID deaths from April onward are directly at the feet of his lies and needless politicizing of health policy, almost as much as a 9/11 and a Hurricane Katrina both every single day. Oh and he incited a violent attack on a co-equal branch of government. And the biggest evil he committed is that after all of that, a third of country would vote for it again. 10 percent of the country would kill for him.
Pure distilled evil... he is the Everclear of evil.