Your point may be valid, but the math is a little off. If you're an H1B holder going through the employment-based green card process (which could take anywhere

Your point may be valid, but the math is a little off. If you're an H1B holder going through the employment-based green card process (which could take anywhere from months to 10+ years), you can extend your H1B beyond the 6 year cutoff in 1 or 3 year increments depending on where you are in the process. A former boss of mine was on H1B from India (big tech company and he wasn't even remotely underpaid) for 12 years, most of that time waiting for a green card.