Some are born rich and some are poor so we can't blame them for poor born but after they have matured if they are still poor then they can be blamed. Those who play poor victim card are nonsense people so its better to avoid them but there are also other people who rise from poor state to well earnings stage and they should be applauded for their hardwork.
You will see there are many people that at some point were rich and then they became poor and when you hear their stories you realize they made too many mistakes during their lives that led them to that position and their money served them as a way to solve some of those issues until they have spent all their money and they had no way to erase those mistakes
But if you are poor you do not have that, you need to take advantage of every opportunity and avoid making big mistakes, unfortunately that is difficult to do and most people cannot get out of poverty because of it.