There’s no legal path to revoking Musk’s citizenship.

Apparently, there are a few (SOURCE):

• He’s a national security threat.
• He’s taking part in treason.
• “Acts of disloyalty or misconduct against Canada may also trigger revocation proceedings.”

Musk is an active enemy of this country, and is taking part at a government level with power to cause harm to this country.

It’s our duty to do something.