They are the ones who delude themselves into thinking that they can kiss ass to get ahead. These are the ones who would oppose a Union because they side with the bosses against their own fellow workers. Historically, this is the type of person who murdered fellow workers on the picket line, who joined up with fascist gangs and who joined Death Squads in places like Chiapas, Mexico and Columbia to murder the poor. It is a symptom of the disease of capitalism that the rich get richer and, since there are no decent jobs where a person could hope for a life, they are stuck protecting the ill-gotten gains of the rich. If you have to eat shit to pay your rent, go to school on the side so you can eventually get a job with a future.
Security guards are just cannon fodder for the Class War of the future.
Don't be a victim. Don't let the System keep you down. They must then wait for real cops to show up and take you into custody. As long as you are not harassing anyone or damaging anything, you can't get kicked out of common areas people need to pass through to go to stores in a mall or shopping center. The law also allows you to hand out leaflets in these areas.