I can't speak to other industries, but in the gaming industry speaking of unionization will actively get you terminated. Not "directly", as that would be illegal, but it will happen for some "unrelated" reason. It's pretty well known.

IT and Programming have a booming job market and salaries are, on the high end, virtually unrivaled by other industries, save for things like Doctors or high-end Lawyers. And unlike Lw and Medicine, a B.S. from a decent school (plus some hustle) is enough to get in to a FAANG.

Eventually the industry is going to cool, but for now Tech really is the closest thing to that Steinbeck quote about temporarily embarrassed millionaires.

Just because we're currently well paid doesn't mean we wouldn't benefit from a union

Maybe in the countries where unions are unregulated. Not in my country, where union would get me way lower pay, longer weeks, inability for various work hours adjustments that I normally do, etc. IT sector is very fortunate to not be regulated.