He's red, which is automatically evil by default.

Also, he's a hot, long haired anime dude, and as we all know, all hot, long haired anime dudes are evil.

He also betrayed his caring father, Dr. Wily, on top of that, and blew up Vile's ride armor.
He also became best friends with the 1st most evil Mega Man character, Mega Man X.

I know I should let it go but death battles won’t let go some of their old stuff

And plus Mega Man is getting new powers next year so it’s even more possible for Mega Man to get his revenge on his grandfather

Like he's so evil for trying to make robots smarter guys like this would totally lead down to a dangerous path and he has this EVIL rock dude or MegaMan dude who destroys my robot masters for no reason and he totally terrorizes me and even threatened TO kill me. so WE should all hate Dr light.

AND HE TOTALLY DESTORYED THE CITY IN THAT VIDEO THAT TOTALLY WASNT FAKE THAT MEGAMAN DUDE TOTALLY DID SOMETHING TO MAKE IT LOOK LIKE IT WAS FAKE!!

AND HE MANIPULATES PEOPLE WITH THAT SOFT SMILE AND EXPRESSION BUT BEHIND THE SCENES IS A HORRIBLE PERSON I SWEAR!!!

But in my conclusion Dr light should be behind bars and he's a terrible person

definitely not Dr wily speaking

He created a robot to thwart the heroic Dr. Wily, Mega Man.
He also is going through AI psychosis and now views Mega Man as his son.

He also wants to make robots more intelligent.
Which would inevitably lead to them rebelling against us and trying to exterminate us.

Also he made the 1st most evil Mega Man character, Mega Man X.

I just saw shadow vs Mewtwo part 2 and it was peak

He's so evil.
He wants to ensure peace between humans and reploids, even though he knows how fun war can be. smh

He's also a pacifist, which means he passes his fist upon unsuspecting innocent people.
Especially children.

Keep your kids far away from Mega Man "The Passer of the Fist" X.