It's not just a "massive drop in income"; if you get fired/laid off or want to leave your H1B job, you have 60 days to leave the country or find a new H1B job

It's not just a "massive drop in income"; if you get fired/laid off or want to leave your H1B job, you have 60 days to leave the country or find a new H1B job (which might not be so easy with quotas & applications etc).