I disagree with that, sure. He was no more an anti-semite or bigot that anyone of his time may have been. His views about people were those common to many people a couple of generations ago. I heard my grandfather say some things back in the day, that, were he alive today would probably not say or really even believe anymore. He was a product of his times, and so was Nixon.
I'm not sure that Nixon committed "crimes against the Constitution" (whatever that means... A crime is a crime. The Constitution controls the powers of Congress and the courts). Whether Nixon broke the law is something that will be studied for decades, but anything he did would have been pretty small-potatoes stuff. Most likely obstruction if anything.
I happen to think that Ford's pardon of Nixon was ~exactly~ the right thing to do. So was Nixon's resignation. I think if there had been a prosecution the damage done to the office and to the country would have been horrific, and worse than the original acts of burglary ever were. Nixon respected the office of the Presidency enough that he resigned rather than fight. That was the right thing to do. Clinton should have had so much respect, but he didn't. Then Ford snipped off any further action by granting the pardon. It's just what the country needed.
Nixon's apparent problem with "jews" was related to what he perceived were political demographics. He can certainly be blamed for that crude analysis.