It would be one of the few times I would find myself on the same side with them, since it would be one of the few times they would be right, should that actually happen.
With so many eligible people available, why choose someone who isn't eligible, unless you wanted to cause problems, to divide and to conquer?
Think of the good a Constitutionally aware Senate majority leader could do for America and how different that would be from how it is now.
That is why people put his name in the POTUS hat: to split the party and to take him out before he gets into a position where he could do amazing work for the nation, and for the world who depends upon a strong, Constitutional US.