Reasons why the H-1B visa cap will increase

1. H-1B opponents have no clout
2. The Gates effect
3. There is grass root support for the H-1B visa
4. The H-1B lottery is a big problem for tech firms
5. Congressional support for visa

The above five reasons come from Patrick Thibodou here.

1. Congress won't see through Bill Gates' misleading testimony.
2. Congress doesn't want to know these truths anyway, as they don't want to jeopardize the lavish campaign contributions Congress receives from the tech industry.
3. The Programmers Guild and many other critics of the H-1B program are diluting whatever influence they have (which Thibodeau correctly points out is limited compared to the huge clout wielded by the tech industry) by focusing on the second-sourcing issue (in which a firm hires H-1Bs and then rents them out to other firms).

The remainder come from Professor Norm Matloff here.