Generally big tech workers have very cushy jobs with excellent insurance and working conditions with many barely working over 30 hours a week, much less 40. It is why many do not see the benefits of a union because what could a union possibly give them?

This is far from the norm. If it's true for a small number of employees at a small number of companies in a small number of regions, that doesn't mean it's true for everyone. I don't know a single employee who thinks absolutely nothing could be made better at work.