Evie
Pronounced like Eevee
In canon, thr main reason given for not wanting Elves on the island is that they represent the Valar, whom the Numenoreans view badly. We are not told it's the only reason, but we are not told there are others either. So no, it!s not canon that there was fear of job stealing.
Tolkien does mention in one of his letters that within Middle Earth Elves might form a superior caste. Fearing that if your island allows a "superior" (and forever-living) people in they will occupy all the quality positions and you will be left with the dregs, a subjugated people, is not uncommon.
And of course the complaint start with one of the guy whose guild position Halbrand tried to steal. So it's already close to true for him - a friend of an elf DID literally just try to steal his job.
Tolkien does mention in one of his letters that within Middle Earth Elves might form a superior caste. Fearing that if your island allows a "superior" (and forever-living) people in they will occupy all the quality positions and you will be left with the dregs, a subjugated people, is not uncommon.
And of course the complaint start with one of the guy whose guild position Halbrand tried to steal. So it's already close to true for him - a friend of an elf DID literally just try to steal his job.