What makes you think that Romney will improve things? Everything he has said or refused to say on the issue indicates that he welcomes illegal immigration and is not at all averse to amnesty and a fairly rapid transition to permanent One Party Democrat Government that will be occasioned by all the new Democrat/Socialist voting citizens.
http://www.dailykos.com/story/2012/06/21/1101935/-Romney-Will-Deport-Children
Now, will he? I don’t know, but I do know that with Obama in, nothing changes. Guaranteed.