[rmc]

-They are assuming I don't contribute to Open Source in any way (I contribute to private repos that are at the core of several large OS projects but are private for business concerns).

If you're commiting to private repos like that, then you're not contributing to open source.

Sure, you're programming, and contributing to projects that others use, and yes, your github profile doesn't show that. But it correctly shows your level of open source contributions.