I also do not care for Biden, but, "the most loathsome human being we've ever elected President," is ignoring history.
There isn't a single president where unpleasant facts about their actions are not documented-- there wasn't a single pure and good president of the united states-- ever, nor even one who did not engage in activities which could be described as "loathsome".
Starting with George Washington who lead an insurrection on behalf of rich slave owners (to protect slavery) and murdered those who would not join his cause. A man who had his dentures made from human teeth torn from the faces of men he had enslaved.
Jefferson, who raped his slaves and enslaved his own children.
Lincoln, "the great emancipator" said, "If I could save the union without freeing any slaves I would do it..." A man that went on to engage in genocide against the indigenous of what is now the United States.
Reagan who engaged in drug dealing to support illegal wars of aggression and his far-right death squads who tortured and murdered many thousands. A man who was instrumental in the genocide of 250,000 indigenous in Guatemala.
But, Johnson wins the prize for greatest single mass murder event, supported by a president, since the genocide of the indigenous in what is now the US. After the far-right dictator, Suharto came to power in a US backed coup. The US under Johnson provided surveillance information used to find and murder, millions of Indonesians who were guilty of the thought crime of belonging to the "wrong" political party (even far-right apologists acknowledge at least 500,000 murdered, but 1-2M is more credible).
Carter who armed and trained the mujahadeen to overthrow the liberal government that arose in Afghanistan after the 1978 revolution (under this left government, Afghan women had equal rights and universal suffrage and the literacy rate had soared). The funding, and arming of these jihadis was continued by Reagan and "pappa" Bush. Yes, the same ones that defeated the US military over the last 20 years. During the US occupation, Afghanistan was tied as second worse place to be a woman giving lie to any noise about US intervention being to improve the status of women.
"Baby" Bush who engaged in illegal wars of aggression against nations who had nothing to do with 911, but who the far-right e.g., the Heritage Foundation had long wanted to overthrow and in its place create a place free of any regulation that would prevent the rich and powerful from abusing those with less money and power-- they even had a plan ready for the invasion when the opportunity presented itself. "Baby" Bush who's regime engaged in illegal, immoral, and reprehensible torture, and displaced and murdered millions.
Every president in the history of the US has committed official, "loathsome", acts that would have landed an ordinary citizen in prison or the gas chamber.