Perhaps unfairly.
While he was responsible for a corrupt administration, he himself was not corrupt and was penniless after retirement. His only means to support his family was a book deal which he laboured to complete as he suffered from throat cancer. Hours after finishing his memoirs, he died.
Grant’s memoirs are considered to be one of the most honest reflections ever written by a political leader.
Grant had it right about the first civil war, it had to end in unconditional surrender, that's how the second cold civil war must end too, utter defeat for the racist assholes. If they couldn't keep it for themselves, then burn it to the ground, while shoving their thumb in Uncle Sam's eye.
If the democrats gain full power they must kill the rouge elephant and disempower the base that feeds it. How? By instituting majority rule using HR-1, voting rights and new laws that would make it a crime to conspire to disenfranchise voters, make them pay a heavy price for even trying. Next eliminate the domestic disinformation system, reassign the AM broadcast band to digital and ban the usual hate radio players, also use anti trust laws to break up the right wing radio and media networks. Next the FCC must regulate broadcasters, cable TV and social media, including YouTube. Any infrastructure plan should provide free regulated basic cable TV to rural America, along with highspeed internet, there is a reason for the rural/urban political divide.
A house divided cannot stand and there cannot be two versions of reality, facts should not compete with lies and propaganda. Rupert Murdoch pushed the edge and crossed over it, there should be extremely dire consequences, like investors who profit from disinformation and disunity losing their shirts. Nobody who watches foxnews or listens to hate radio votes for democrats any way, so nothing would be lost. If you fight fascism, you must go all out, it has always been that way.