Has this world gone insane???

I'm not with or against what Luigi Marione did but what is up with females loving serial killers and making them famous. Same with Ted Bundy. Because they look somehow good these weirdos flock around them. Same with musicians like Justin Bieber. Having posters on the whole wall and adult women talking what they want to do with him when he was like 14 years old. Very weird behavior. Never seen men give so much attention to a popular woman. Is everything alright in their head? Is it true that women's brain is smaller than mens?