I never inferred that he was. Rush's continuing embrace of Rubio often blurs Rush's position on Amnesty because Rubio has defined himself as Amnesty. Rush no doubt is against Amnesty because Rush is self-employed.
Hannity is a different matter. Hannity may be self-employed on radio but on television Murdoch cuts his checks and he must take his marching orders from Ailes and Tokyo Rove. Anyone who watched Hannity's interview of Rubio on Fox last night, had to be wondering why Hannity was asking questions using the term conservatives in the third person and why Rubio was answering questions using the term conservatives in the third person. As I posted on another thread, Hannity is not really a conservative, he just plays one on what the MSM refers to as right-wing radio.
I agree with you re: Rush and Hannity, but I don’t think self-employment is determinative. The self-employed who benefit from illegal labor tend to be for amnesty, for example.