True "history fanatics" get their facts right.
It was not Jefferson but James Callender (a Jefferson supporter) who called Adams a "hideous hermaphroditical character." Supporters of Adams resorted to similarly absurd and offensive rhetoric, claiming a Jefferson win would lead to “dwellings in flames," the elderly "bathed in blood, female chastity violated," and "children writhing on the pike and halberd.”
Your account lacks nuance. Jefferson ultimately denounced the Reign of Terror. He penned the Land Ordinance of 1784, which banned slavery in the Northwest Territory--a provision carried forward in the more enduring Northwest Ordinance of 1787.
When did George Washington "fight against slavery"?