At one time photography was a specialist trade which not many people did. Now almost everyone has a camera and it is not specialist any more.
You heard it here first folks. That's all you need.. a camera. The specialism and skill come with it. No need to learn
Interesting point this... all joking aside: Cameras have always been available to everyone. You make it sound like this is a recent turn of events. I remember my first camera that my Dad bought me... a Pentax MV. It took pictures every bit as good as as the then king of the 35mm heap.. the Nikon F3.
Two things have changed: Skill required... it's now less. (I'm not even going to debate this... it just is) and the perceived standards of quality are lower as a result, and the ease of dissemination via the internet.
Photographers need to adapt. Long gone are the days when people relied on professionals entirely. The stock industry has changed beyond all recognition as a result of this. Low end stuff like weddings and social portraits have been massively affected too.
You know what though? The very best will survive... simply because they are still doing stuff that the average "togger" can't. They are inventive, creative and they adapt.
As standards in general public photography increase due to technology replacing skill, then EVERYTHING requires an upward shift.
It's a tough industry now. You just have to be better than those selling themselves cheaply. If you're not capable of that, then you'll die. If you are, you won't. Simple. If you're still placing yourself in markets such as weddings, then you need to realise that there will always be those that do not appreciate quality, and value saving cash above all else.
It's much easier for a relatively new photographer to just "do weddings" than it would be "Do a Vogue front cover" so of course these are the markets hit: Weddings, Social portraits, low end advertising, and product shots and stock. All easier to do these days than they were when we used film.
Adapt.. find the edge that makes you worth paying for.
As soon as Flickr, Facebook, 500px et al arrived, this was bound to happen. It's no one's fault. It's a paradigm shift in the industry. When airliners came long, the steam ship industry had to realise that they can't continue operating as a means of long distance transport. They adapted (or the clever ones did) and they became a destination in themselves... the "cruise" was born.
It's the same.... the industrial playing field has shifted.
Adapt or die: Bleating on about how unfair it all is is probably putting you in the latter rather than the former. There are still plenty of people out there making a really good living from photograph; They are also good business people and understand how to adapt to a market. Photography actually has surprisingly little to with being a professional photographer. Those of you that don't realise this, are not ready for this brave new world.