We all pick our pen names for a number of reasons ~ in Muawiyah's case, he was a Dark Ages fellow who did a couple of things that proved he was as close to a Jeffersonian as you were liable to find "way back when".
Folks get upset about Forrest simply because he is so recent ~ and even if you despise the man, he was a He|| of a soldier, and rose through the ranks from Private to General ~ commendable in all armies in all of history.
Our friend Wolfstar might ponder the blemishes on the record of Thomas Jefferson, some of which I outlined for him. He might consider whether Winston Churchill deserves opprobrium to the degree that heaps upon General Forrest because Churchill sent the infamous Black and Tan's into Ireland. Abraham Lincoln suspended habeas corpus, jailed dissidents, and otherwise ran roughshod over the Constitution. Should his name or likeness be banned from free Republic? Or do his other achievements justify our regard for him?
Wolfstarr might also think about the fact that it was Forrest who took steps to disband the klan and who, by all accounts, died a man broken to his sins, repentant in his attitude toward slavery, and reconciled with his African-American neighbors.
More likely, though, our friend will soldier on, glorying in his ignorance, resolute in his determination not to deal with the substance of any issue.