Suppose the gun references were replaced with Jewish symbols and organizations. What would be the future of this artist then? The right to keep and bear arms is a specific enumerated right. Politicians who advocate the infringement of that right violate their oath of office and do not deserve to hold public office. They should be prosecuted under 18 USC 242. Being kicked out of office is being far too kind and sets a poor example.
And, yes, the ejection port is on the wrong side of the pistol.