When service/retail jobs are so easy to get, I'm not seeing how it's not realistic to say "if you want to be treated like you're not an irritant, get a job where you're not an irritant."

How would more experience in the service industry help me to see why it's not practical for someone to simply choose a job where they, say, provide food for hungry people instead of, say, bothering people all day? Keep in mind that you can literally choose one of these jobs, as the barrier to entry is incredibly low, and the turnover rate is high.

Are you saying that this wouldn't normally be a choice, and that I'm being unreasonable by saying the occupation of burger-flipper is objectively less annoying and intrusive to people as a whole than the occupation of telemarketer?

There are countries where unsolicited outbound telemarketing calls are literally illegal. It's not a respectable position. I don't go off on telemarketers because I don't want to ruin MY day - but I don't think for a minute that what they do is respectable, or that it's a necessary or useful role, and I don't believe that the majority of them don't have any choice as to what they do for a living.

Like, yeah, they probably don't love what they do, and they're probably not in it because they WANT to bother people, but they ARE bothering people, and if the people they're calling sound annoyed, it's because their role exists to do things that annoy people.