I don't think it is welfare that has caused the issue, as much as it is a lack of opportunity for an entire subset of people in this country. There are millions, black, white and Hispanic that live in a tiered system that makes it hard for them to get out. Some do, but to try and assign welfare to it is wrong as many folks living in the same general condition are hard working people in low paying jobs and in the service industries that are just barely making it.
The system, as it exists now is not set up for everyone to succeed. That is a very sad fact. The education system is a political football where funds are tossed around to everywhere but students and the fundamental education of kids is not improving, black, white or Hispanic. That is not a welfare, or welfare state problem. It is a societal problem.
It sounds like you are trying to force an argument that "Welfare is bad, make it stop - I need evidence to support that premise". Sure there are welfare abuses and folks who are caught up in that cycle but look at the mitigating circumstances that contribute to that cycle instead of just trying to pin it to the Welfare system. That system has helped many more people than it has hurt.
And when you ask "why is it allowed to perpetuate?", make sure you also have a plan to back fill the unintended consequences of the kind of change you are suggesting.
I will admit something to ya'll that I don't mind saying because this topic is good.
When I turned 15 years old I had to put myself on Welfare. It was a horrible experience, it was degrading to the soul. Having to walk into the welfare office was like walking into a jail with no bars. You are treated like shit in the system. I was on it because I needed it. I fought for the help it wasn't handed to me, funny ha. But here is the twist, once I was on it, I used it to the best of my knowledge.
Knowing that its there as a stepping stone and not being comfortable with it helped me excel at a rapid rate.
I used it to buy food, pay rent, and car fair to look for jobs. All the while training myself on how to right resumes. I am lucky I felt this way. It broke my heart to see others in the Welfare office broken down, no hope in there eyes. You can tell who would make it and who wouldn't. You can see the direct pain in their hearts, you can tell who would die on welfare and who would rise to the occasion to change their view of them selves.
I needed to see and experience that so as I may become stronger. But please keep in mind not all of us (any body black, white or otherwise) reacts the same way to intense situations.
My reaction and self motivation came from the fact that I knew I could be successful if given a chance. I stopped knocking on doors, and figured out how to make them. I stopped looking for some one to say yes and created my own answers. I stopped waiting for the window of opportunity and realized early that I can be A CREATOR of opportunity. See, were I am heading. I mentally conditioned my thoughts and self being to produce the life style I choose. I never ever ever let whats around me control me but bettered my self by telling my self I am better then my situation.
That's the point I have been trying to make. You know how hard it is to tell 100,000's of people to "DONT WORRY" IT OK., when all they see is death, drugs, cops, guns. Have you ever stopped and asked a younger person of whom wears the baggy pants or a gang banger if they even wanted to be in that situation. I have and the majority of the time the answer is no, its all I have known.
I strongly think and firmly believe if there is going to be change, then the change needs to take place in the hearts and minds of the people needing the help. Changing the surroundings, eliminating self doubt and self pitty and thats just human nature, not a race factor.