Reagan's covert wars in South and Central America killed hundreds of thousands. He armed the Taliban and gave biological weapons materials to Sadaam Hussein. He ignored the AIDS crisis, allowing an epidemic to occur because his administration was convinced it was god's scourge on gays and drug users. His draconian social policies and fear of hypothetical welfare queens hurt millions of Americans and put many thousands of people on the streets.
And that's only him as President. He was more than willing to serve up people to HUAC behind closed doors when he didn't have the courage to do it on the House floor. There's also reports that he raped Selene Walters when she was 19yrs old he was 42. And as for the war on drugs, there's also evidence that he smoked pot back in the day.
"Reagan on a personal basis, is terrible. He just isn't pleasant to be around."
Nixon on Reagan.