There should be personal responsibility. At the same time the Mexican Americans are coming from a very different culture, history and perspective.

While there are some similarities there are many differences you are completely glossing over.

Hell, the Civil Rights Act wasn't until 1964 which really wasn't all that long ago.

And growing up in a poor rural area (which has great challenges of course) is not the same as growing up in a dense urban area full of gangs and other challenges.

PS---Again, see my previous comment WRT affirmative action.