I'd estimate maybe 5% or so of the women you'd find on a dating site are legit -- and frankly, maybe 1 out of ten (or less) are anyone you'd want to have anything to do with anyway. Internet dating sites are more or less the last resort for the desperate, and as such not worth anyones' time.
I guess I'm in that 5%. Maybe even the 1 out of ten you cite. Because I'm real, my profile is honest, my pictures are current, and I'm not trying to be anyone but who I am. My main picture is me in a Jayne hat FFS.
I also guess that you're a neckbeard who will only look at the Google scraped model pictures and start your message with some offensive comment about their anatomy. Meant as a compliment of course.
When all you get is declined maybe the problem is closer to home.