Employers do not want people coming to work drunk or stoned. Very rare someone is doing Tequila shots at 7am before work...or at lunch.
It is a major safety hazard in the culinary industry, processing plants, people who drive trucks, in restaurants, many jobs.
No one is saying they are bad people. I am saying buying legal pot on every street corner empowers them with no fear to get stoned where they want, whenever they want.
Have you ever done drugs or got stoned?