I think people either aren't aware or don't care thatBundy was raised by his grandfather.
His mother was unwed, and let her parents raise Ted as her brother.
Ted's grandfather was a cruel man and violent.
It is possible that he impregnated Ted's mother and may be his real father.
Ted discovered his grandfather's porn stash in a garden shed.

It was bondage and violent.

Probably tame by modern standards.
Ted was born in 1949.

At one point, a young Ted surrounded his sleeping mother with kitchen knives on her bed.

So porn, even mild porn, coupled with an a usive upbringing helped create Ted Bundy.