Is it a coincidence that most somgs about tailers put them down as thieves, scalywags or fools and that tailering was principaly a jewish trade in the nieteenth and early twentieth century

Most songs about tailors are older than that and don't come from the places (particularly London) where tailoring was a Jewish occupation.

The usual stereotype you get about tailors is that they weren't very masculine, compared with ploughmen or sailors. Maybe the stereotype expressed an inchoate form of homophobia, but not anti-Semitism.