Tthe point of the GOP's Hillary email obsession is the same as its pound of her for her alleged missteps and conniving on Benghazi. That is to embarrass and discredit her as a 2016 presidential candidate. The contrived email and Benghazi flap fit neatly into the GOP's now chosen point of attack on her.
With 2016 fast approaching, things look bleak for the GOP. Pandering to a non-white voting block could very well end up costing it the South, as it did to the Democrats in the 1960s. At the same time, pandering to base will alienate too many groups to win in a general election--not the least of which are Latinos.