Congresswoman Anna Paulina Luna says loving the UFC fight on the White House lawn isn't a choice ... it's chemical -- with testosterone producers sure to enjoy. Our TMZDC team caught up with the Florida rep. before the controversial event on Sunday ... and we had to ask about all the backlash for the event. Luna's clear that people who don't produce testosterone -- basically, weaklings and wimps -- are the only ones who can't get behind this event ... a knock on many liberals who have attacked