Who is CUPE (Canadian Union of Public Employees)?

“The Canadian Union of Public Employees is Canada’s largest union, with 750,000 members across the country. CUPE represents workers in health care, emergency services, education, early learning and child care, municipalities, social services, libraries, utilities, transportation, airlines and more. We have 68 offices across the country, in every province.” (CUPE)

From the National Post

CUPE Ontario sponsoring ‘Hands off Iran’ rally outside U.S. consulate this Sunday:

CUPE Ontario called the poster ‘an early unapproved draft version’ and said the group is calling for ‘an end to war between Iran and Israel’CUPE Ontario called the poster ‘an early unapproved draft version’ and said the group is calling for ‘an end to war between Iran and Israel’

and from Warren Kinsella…even…

What do Canadian “workers in health care, emergency services, education, early learning and child care, municipalities, social services, libraries, utilities, transportation, airlines and more” have to do with Iran? Shouldn’t they be focused on working to provide health care in our closed emergency rooms, and education assistance to what we are told are classrooms desperately in need of help, etc.? Too much Canadian taxpayer afforded time on their hands?