Sorry Nancy, we are NOT a democracy. And further, and more importantly, there is no constitutional right to vote. Period.
Do none of you people know/read your Constitution?
Section 4 - Republican government
The United States shall guarantee to every State in this Union a Republican Form of Government, and shall protect each of them against Invasion; and on Application of the Legislature, or of the Executive (when the Legislature cannot be convened) against domestic Violence.
At the time of ratification, the right to vote only extended to men of property. The later amendments had to be added to ensure the right to vote would be secured to ALL citizens.