“I suspect there would be volunteers, such as yourself, to help with the building (IIRC Texas is a RTW state, so wouldn’t have to worry about unions). There are probably contractors and suppliers (especially in TX) that would contribute materials or give a huge discount on them.”
Here is the issue. The minute this happens the Sierra Club will file an injunction that building the fence will harm the endangered(insert rodent,reptile,bird here) and must be stopped immediately.
The response to that should be, illegals leaving their trash and destroying the environment needs to immediately stop in order to save the (insert rodent, reptile, bird here) . In addition, their presence has raised the carbon level significantly and illegal immigration can cause global warming.
Then watch the heads explode.
You know, there is one other option that can be combined with all of this.
A full scale attack on Obama that he has gone full rogue. His actions cannot be disputed as he has his “phone and pen”. Start talking about it on talk shows. Start running commercials.
Then accuse him of using all of this PC crap to insulate himself from any criticism or congressional action.
There is no way he can say he has republican support and it puts the rats on the spot for this election. A few psychiatrists on Fox taliking about his narcissism and confusion regarding his inner conflict with religion and ideological upbringing will get people thinking.
Of course as an aside, mention of Hillary sharing that ideological confusion wouldn’t hurt.
Or just ignore any injunction. Make them take action to stop the construction. That's what they would do. Just freakin' ignore the law.