Should the U.S. still be considered a democracy at this point?

As others point out, it's a Republic, not a Democracy. Either way, one side wins, the other loses, that's how the system works. Though I do get tickled at the people who whine when their side loses that "it doesn't feel like a Democracy anymore". If your side wins all the time, every time, it isn't a Republic or a Democracy then, it's a dictatorship.