It is mostly subliminal. I don't get it. I recognize that there are the Rush Limbaughs and Dr. Lauras who have talk radio shows, but these are syndicated and not part of the mainstream news that people see every night while eating supper. People can be amazingly open and vulnerable in an interview, and that humanizes even those who have very different views from your own. So while I may not agree with someone's beliefs or viewpoints, I do often come to understand why and how they came to them.
Rape is illegal in any case.
However, there are no significant consensual sex laws regarding teenage girls. The main reason is that until recently, it wasn't common enough to merit attention. If it did occur, typically the couple would be either seeking a marriage or forced into it. Since the economic depression of the '80s, times have changed. An increasing phenomenon is the practice of 'compensated dating,' in which an older man pays a younger girl to be his girlfriend.