One of the most interesting things that stood out to me from this letter and that lawsuit was the assertion by those affected that discrimination on the basis of caste was more impactful and more severe than discrimination suffered due to immigration status, race, and gender in US society, and the letter goes so far as to state "We know that we thrive when we work under a non-Indian boss. Our work is seen and evaluated on merit, and we are integrated rather than being excluded."
It makes these discussions of castes even more important, especially as Indian immigration continues to rise and Indian culture begins to take precedence in the tech industry. Being a white American from the Midwest, I had no awareness of caste or caste discrimination when I began my career, but as I got more experienced began to learn about it and unfortunately I have personally witnessed some incidents in the workplace during my career. I wish that Google had allowed this talk to move forward, because I think ending workplace discrimination is a critical path to ensuring a merit-based free market open to all.