Will you explain how this builds and runs itself? The jobs are real and there will be a long term need for maintenance. It brings oil to US soil. It doesn't pose any substantial risk.
Your objection seems to be based on the fact that many think this to be a bad decision on Obama's part. You think it's not yet you have no effective counter to the substance of the issue.
I didn't say it builds or runs itself, but I do take issue with the notion that projects like this create and maintain a large number of jobs. The Transcontinental Pipeline is a perfect example. Long term maintenance involves a large deal of automation, and the numbers of the employed go down, not stay static or increase. I don't feel the risks involved are worth short term employment, certainly not for such an inefficient method of production that by the way produces energy that we need to wean ourselves off of.
Oil companies have proven in spades lately that they can't be trusted to do the right thing (forgoing necessary precautions to save a paltry 2million in the Gulf being a great example), I really don't expect them to change.
If republicans want to help the economy they shouldn't be derailing bills that give tax incentives to businesses that keep operations in this country, as well as removing loopholes and subsidies for those that are offshore businesses.
If this project represented a method that wasn't so environmentally damaging and maybe even was built around a energy source that was sustainable and more cost-effective I doubt you'd see any disagreement from the White House.