[ubernostrum]

The usual critique is that these visa programs were designed to allow companies to hire a person from another country in cases where no US citizen was available (usually because of some particular skill or unusual knowledge required for the job). But companies have learned how to game the system and "prove" that there are apparently zero US citizens qualified for software development jobs, which then absolutely requires importing people who will work for a far lower salary and be tied to that specific job as a condition of being allowed in the US.