Starter motor continues to run(without starting the engine) with the kill switch off and ignition turned of and the keys removed

Most bikes are built with this setup....
the positive battery post has 2 cables....one goes directly to one side of the starter solenoid relay, the other goes to the main fuse for the bike. With the key on, when you press the starter button it completes the circuit for the relay coil, which closes the heavy contacts of the solenoid and puts power to the starter motor.
This design allows the starter button to be constructed with smaller wires as they only operate the coil, not carry all the heavy current to spin the starter.
It sounds like your starter solenoid contacts are stuck closed so power is getting through at all times.
Sometimes with battery unhooked you can tap the solenoid and free the contacts....and it may work, however its probably time to replace the starter solenoid relay.