I'd need to see quite a bit of evidence to support the idea that high STEM salaries are at the expense of the blue collar workforce. Unless you mean the specifi

I'd need to see quite a bit of evidence to support the idea that high STEM salaries are at the expense of the blue collar workforce. Unless you mean the specific industries that are moving money from traditional sources and funneling it into tech companies, in which case it's intuitively true. But I worked blue collar for the first 20 or so years of my career, and salaries were under the floor long before tech really started taking off.