"What a question!" Haha. No, Hello Kitty is a lovely and kind character. She was born when Yuko Shimizu was engaged to the Japanese company Sanrio back in 1974. Necktie-wearing Kitty is just an adorable figure, having nothing whatever to do with the demonic.
It's Kawaii--cute culture from Japan, which is becoming popular all over the world. Believe me, Hello Kitty is loving and happy, happy and loving with everyone around her.