Can the employee just say they don't match their needs anymore and fire me? When clearly it's because I have a chronic condition they just became aware of?

Please give us a call. You are entitled to severance and may be entitled to additional compensation for a human rights violation.

In general, an employer can terminate anyone at any time for any reason, with the notable exception of a human rights ground, as long as they provide the individual with severance. If the employer terminated an individual because of a human rights ground, the employer may be liable for additional damages.