ARE THE SITH BAD?

Are the SITH that bad or have the JEDI just given them a bad rep?

Honestly I think the Sith are really cool, they aren't even that bad it's the way the Jedi talk about them that makes them seem evil.
The Jedi are Evil, think about that! Mace Windu is an actual decapitator!

All they want is power and control over the entire galaxy, they're destructive and full of rage they must be stopped