I would posit that the underlying principles of the tech world share a number of core values with D&I.
Think about the open source software movement (OSS). One crucial perspective that the OSS shares with D&I is that both view discrimination as an impediment to progress. OSS licenses include several non-discrimination clauses (economic, field of endeavor, other restrictions). The licenses go to great lengths to ensure the technology is available to everyone.
When you think about the "Cathedral and Bazaar" models of software development, which one is naturally more diverse? The hierarchical, exclusive cathedral, with its rigid structure, serious gatekeepers, and highly-credentialed leadership? Or is it the open air bazaar, with all kinds of people talking (softly or loudly) in a place known for public discourse. A place where anyone can walk by and join in and become part of what's going on?
My point is that the underlying precepts of D&I are similar to principles that already exist in the tech world.
So this isn't really about embracing D&I. Instead, the tech community needs to start living up to its own rhetoric--it's own values. This isn't about adopting an external issue, it's about a community fully aligning with its own values.