Will any GOP president ever achieve the job creation levels of even the least of Democratic presidents?

No, because the GOP is and has never been interested in job creation, but exploitation of workers. They are and have supported only low wage labour such as fruit picking or unskilled factory work, while at the same time substituting workers with machines, and out sourcing jobs abroad. So their only interest is higher profit and lower pay. Some day all of this may blow up in their faces and then they will be in deep **** as they deserve to be.