SG Jinx is non-canon like 99% of the other skins in LoL so sure, you can think of whatever you want with her. Just like how you can think Firecracker Jinx isn't a terrorist and just lights fireworks all the time instead of blowing things up.
But the real, canon Jinx. The one that you guys are talking about is not what you want her to be. She is a literal mass-murdering pyschopath that is incapable of forming a relationship with another person due to her complete objective look at other people and how she sees them more as objects than anything else.>>204716954
Jinx is not supposed to be liked or loved because she's just a "messed up girl." She is a monster. A mass murdering psychopath that kills for amusement. Maybe not purely kills or intends to kill but will still kill regardless for her amusement because her antics involve killing at least a dozen people.
She is not supposed to be relate-able or cute or morally grey. She is a psychopath, through and through.