Agree or disagree?
Yep, that's what someone said to me. To which I could only reply:
One of the worst Presidents ever? Compared to who? Bush? Reagan? Nixon? Worse than the series of pro-slavery Presidents in the run up to the Civil War? Worse than Jackson who forcibly deported the south eastern tribal peoples from their lands? Worse than Wilson, Truman and Eisenhower who oversaw the repressions of the first and second Red Scares? Worse than the plutocrats that held the office during the gilded age and bloodily suppressed the Labor movement?
What standard of measurement are you using?
Criticize the President all you want but no one is obliged to accept your opinions as gospel. It's your obligation to make a convincing case, something difficult to do if you engage in statements that are long on hyperbole and short on substance.