Why Waluigi is evil

Waluigi is a sex offender in my head cannon. He gives me Charlie’s uncle from it’s always sunny vibes

I admit, the Ron 'Fat Sex Offender' Jeremy mustache is not a good luck.

This feels way too plausible.

Waluigi Snap! Like Pokemon Snap! , but more of a stealth game where Waluigi creeps around taking candid photos of other characters. Bonuses I'd they successfully steal small trophies from the characters and sneak back to the white Waluigi Van undetected.

Because we didn't get the cockfighting game they promised

You mean the cardboard character that's the counterpart to another cardboard character and that only exists because Wario needed a doubles partner in Mario Tennis? Even his name is an afterthought, why would Nintendo suddenly start caring enough to give him a game?

To be fair I don’t think any of the Mario characters have much in terms of character development
- Waaaaaaaahhh-Luigi!
https://theemptypage.wordpress.com/2013/05/20/critical-perspectives-on-waluigi/

I, We, Waluigi: a Post-Modern analysis of Waluigi by Franck Ribery

Waluigi is the ultimate example of the individual shaped by the signifier. Waluigi is a man seen only in mirror images; lost in a hall of mirrors he is a reflection of a reflection of a reflection. You start with Mario – the wholesome all Italian plumbing superman, you reflect him to create Luigi – the same thing but slightly less. You invert Mario to create Wario – Mario turned septic and libertarian – then you reflect the inversion in the reflection: you create a being who can only exist in reference to others. Waluigi is the true nowhere man, without the other characters he reflects, inverts and parodies he has no reason to exist. Waluigi’s identity only comes from what and who he isn’t – without a wider frame of reference he is nothing. He is not his own man. In a world where our identities are shaped by our warped relationships to brands and commerce we are all Waluigi.

There is apparently a sequel post now as well.
- I remembered about that post while writing my comment but couldn't find it. I didn't know the sequel but both explain the problem of Waluigi as a character, Nintendo sees him as filler and he's more useful for them as such. If they start fleshing him out he'll be less useful in other contexts... Which is also a apt metaphor for why conservative societies want people to fit faceless molds
- Waluigi is a Jean-Paul Sartre character -- defined not but what he is, but by the circumstances and how others view him
The names make a little more sense in Japanese as a pun; warui means bad, and Luigi is spelled Ruigi in katakana. So Waruigi is bad Luigi.
- Ironically, using Ruigi for Waluigi in English (as Ruin+Luigi) would sound less lazy.
Because Waluigi is valid.
His name is what bothers me the most. It could have been as simple as Juigi. It sounds stupid, but not as stupid as Waluigi.