> Point out actual publicly available data like Glassdoor or Salary.com and you’ll get a whole bunch of nit picks about their methodology or the fact that they report base salary only, etc.
So you don't have a counter argument is what you're saying? The truth is those site are insanely flawed and if that's what you're using to form your basis for negotiation then you're at a disadvantage period.
Compensation is often base + bonus + equity. For sufficiently senior positions, the equity component can be almost as much as the base salary. If the equity is liquid, then why is that not relevant?
FYI new grads at any of the big tech companies are bringing in close to ~$200k in total compensation their first year. It's not just someone's sister's cousin. It's a majority of engineering new grads who work at any of the BigCos which employ A LOT of people and are constantly hiring.