You remind me of Reagan when he said that democrats aren't ignorant, just that so much that they know is wrong!
A pure DEMOCRACY is based on the MOB RULE of the People so that the unrestrained MAJORITY rules, and if 51 out of 100 decide to take your house away from you, guess what? MOB RULES, majority rules, and they take your house, that is Democracy.
The word REPUBLIC comes from the Latin RES PUBLICA, which essentially means THE PUBLIC LAW OR THING, where the public is governed by laws protecting the rights of the people, not a mob, so that both strong and weak both have equal representation. Kind of like how a gun makes a small girl equal to a big dude. This way, the public is restrained from a simple mob majority by an agreed upon set of laws governing all. This way, if the mob tries to take your house, they are restrained by the law.
You are welcome.