I don't know about that. Who needs lawsuits when you've got millions upon millions (only a small percetage of the total) who are well-organized and demanding OPEN BORDERS. We've already witnessed on several occassions their ability to take over cities all across this country as a threatening show of force meant to intimidate our lawmakers. Not a single sign said "Secure the Border".
If President Bush sees fit to put the military on the border (and I think its about time), I predict their "La Revolucion" will begin. Which, IMO, will show our D.C. leadership exactly who we are dealing with behind those american flags and, if their Revolucion is extensive and pervasive enough, it will bring a resolution and hopefully an end to any further talks of 'earned' amnesty and 'open' borders, and the divisiveness this issue has brought to the party.
Our D.C. leadership has created this monster, allowing it to fester and grow to perhaps 30 million strong and short of giving in to its demands, IMO, will be forced to face it head on.