In this article, we take into account the specific area of labour market: doing so, we will provide arguments addressing some of the most widespread hearsays: are immigrants 'taking the jobs' of locals? Do they pressure down wages? We can take the United Kingdom (UK) as a study case. Since its population voted to step back from European Union (EU), studies have been flourishing in order to provide arguments on whether or not tackling migration was a relevant and reasonable argument in favor of Brexit.