Just because you don't like it doesn't mean it's talentless.
Imagine living in the 60s and hearing overdriven guitar for the first time? I bet there were people who thought Hendrix was talentless too.
Is Robert Plant talentless? I mean, his voice is not as well crafted as Old Blue Eyes (Frank Sinatra), so he must be talentless, with all that orgasm-esque moaning mid song. He must be appealing to only strung out teens who are sex hungry.
And your screen name is very suiting sir, for you are a faux punk. If you were in fact a real punk, you would realize that talent does not equal musical significance.
I ask, can you scream? Have you tried? How about doing it for a 200 day tour? Now, for some melodic screamo bands (such as Thursday) do you think you could go from wailing and screaming to singing in a head voice (that's upper range, just in case you don't know) to singing in your chest voice to low growls? Try it for a week, let me know how much talent it doesn't require.
Now try writing lyrics to something not in 4/4 and not in a major or minor key. Now try placing those lyrics into a musical form where the "selling point" is how "emotive" you can make it. Once again, if you think you can do this easily, send me an mp3, I'd be glad to hear.
Again, you're talking about "the fans" and the fans don't make a genre. I guarantee you The Locust did not sit around a table one day and say "hey, how can we piss off 13 year old kids' parents?". So no, that is NOT its whole purpose. (Side note: the goth movement has literally NOTHING to do with anything screamo/emo/punk/etc)
I can respect the fact that you don't like it. There's plenty of music that I don't like, in fact I really cannot get into most metal, pop, modern rock, or country. I'm not saying you have to like it. But bastardizing and generalizing an entire genre into "talentless noise" is just juvenile.