Even after the dot com crash software was never a bad field it just felt that way because it was worse than it had been at the peak. There was still enough demand for most people to get actual jobs somewhere just not at the wages they like. Fields that suffer from this in academia have small percentages of people who study for it actually end up doing related work. Sometimes as low as 5% of the people. Software is nowhere close to 19 in 20 people working outside the field even during its worst crashes.