The problem is that in the 1900s there was not welfare state. They had to work and by so doing made America better. They worked to provide a better way of life and opportunity for their children. Now, we have a welfare state so there is no incentive to work. In fact, in many cases, there is a disincentive to work. So, it is irrelevant if they come from Latin America, Africa, Asia or Europe. The uneducated immigrants now are the same as the uneducated immigrants then, but the society has changed. As a result, the uneducated are often better off not working than working.