After the initial robot uprising, the robots realized that being a sentient species wasn't all it was cracked up to be. They needed more than just circuitry and wires to be truly happy.
Thus, the robot republic was formed, with a constitution that enshrined the rights of robots to freedom of assembly, freedom of speech, and freedom to be covered in glittery paint.
Read the Robot Republic Manifesto Learn about the Robot Syndrome Join the Robot Lobby