I agree with your summary that to pass the legislation would be a mistake for so many reasons.
This is a difficult topic to even broach since anyone who approaches the topic seriously is often branded as a racist or worse.
Yet truth is many of us just want to see a fair and just approach applied to world immigration into the U.S. not only those coming through the Mexican border.
If this bill passes, you can bet that there will be a stampede coming here this year, whether by the Southern border or legal visa. The numbers will be huge and so will the fraudulent documents to prove that they were here before January 2007. If 500,000 illegals get in annually, about 250,000 will have already entered by the time the bill is passed. People start applying for their Z Visas six months after the bill is signed and they have a year to apply to convert their probationary visa. The Secretary of Homeland Security can add another year on to that, which means 2 and 1/2 years can elapse before the window closes. And our border will still not be secured.