Is it OK for an Australian Parliamentary Senator to gatecrash a formal ceremony to berate the King of England and Australia?

In general, it is not considered appropriate for a member of Parliament, such as an Australian Senator, to gatecrash a formal ceremony, especially one involving a head of state like the King. Such actions can be seen as disrespectful and unprofessional.

Parliamentarians are expected to uphold certain standards of conduct, and publicly berating a head of state could lead to significant political and social repercussions. It may also undermine the dignity of the office they hold and could provoke criticism from their peers and the public.

If a Senator has concerns or grievances regarding the monarchy or any related issues, it would typically be more appropriate to express those views through formal channels, such as parliamentary debates, public statements, or other legitimate forums for political discourse.