Substitute Trump for FDR and Mexicans for Jews, and the rhetoric is almost identical to modern nativist rhetoric:
"“[Trump]'s unflattering statements about [Mexicans] consistently reflected one of several interrelated notions: that is was undesirable to have too many [Mexicans] in any single profession, institution, or geographic locale; that America was by nature, and should remain, an overwhelmingly white, Protestant country; and that [Mexicans] on the whole possessed certain innate and distasteful characteristics,” wrote Medoff."
"“[Trump]'s unflattering statements about [Mexicans] consistently reflected one of several interrelated notions: that is was undesirable to have too many [Mexicans] in any single profession, institution, or geographic locale; that America was by nature, and should remain, an overwhelmingly white, Protestant country; and that [Mexicans] on the whole possessed certain innate and distasteful characteristics,” wrote Medoff."