The definition has drifted to the point where the noun 'lolita' has been appropriated to mean eighteen and nineteen year-old females on the internet.
Yes, many English-language speakers equate 'lolicon' (or 'roricon' - I've seen this Anglisation of the word) to pedophilia. This ultimately serves to show how stupid and closed-minded they are. The correct noun for a person with this fetish is 'ephebophilia'. An ephebophilist is interested in adolescent females, of the 13-18 year-old range. (Not a preteen or a prepubescent.)