I agree in terms of the equivalent of standard libraries. Ex: if you want a DMA engine, a PCIE interface, Ethernet, etc... you either have to build that from scratch, or buy IP from a vendor, there's not a lot of open source. There is opencores.org, but when a company is investing a lot in their own hardware design, then tend to want higher quality, or more recent/updated designs.

But the IC/hardware toolchain is a separate issue from the design itself. It's largely proprietary, probably due to the niche market and large R&D costs involved in some of the tools.