Thats wrong information. H1B is a “dual intent” visa.
Its broken because it was really intended for exceptionally skilled workers. But currently its a lottery. USCIS just takes the word of the company applying for it and grants the visa. This loophole is being exploited by numerous body shops. That is reason why there are low quality H1B workers. There are various other problems like employee mobility, spouses of H1B is not free to work in the land of the free. Country of birth based quotas for permanent residency, rather than skills or points based quotas.