Democracy isn't perfect but it's the best option we have. Most peaceful, succedful and humanarian based countries doing good for world have adopted democracy.
It's a fruit tree, gives fruit in few years when rooted strong. It took two hundred years for US to be on top in democracy where no one powers all. It's run combined by president, Congress and judiciary same as most European countries.
Or we can have kings, Hitlers, Saddams or Qaddfis.
Quramic Islam guides same democratic rule for society named Shurah. ( Settle all your matters with Shurah).