The quoted line simply highlights the fact that a disproportionate number of developers fall into the category of "white guy" (guilty as charged); many of whom seem incapable of seeing beyond their personal experiences (hopefully not entirely guilty). Whilst that's not necessarily a demonstration of conscious bias on their part; it is a significant contributor to why the tech industry repeatedly makes mistakes that adversely affect "minorities" - most of whom are not actually minorities. The perceived "default" ("white guy") is not representative; and so the needs of others are not properly considered: e.g. "Most of Our Users Don't Need Accessibility"...
For those who are affected the issue is political.
Read Technically Wrong if you want some illustrations of this issue.
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The quoted line simply highlights the fact that a disproportionate number of developers fall into the category of "white guy" (guilty as charged); many of whom seem incapable of seeing beyond their personal experiences (hopefully not entirely guilty). Whilst that's not necessarily a demonstration of conscious bias on their part; it is a significant contributor to why the tech industry repeatedly makes mistakes that adversely affect "minorities" - most of whom are not actually minorities. The perceived "default" ("white guy") is not representative; and so the needs of others are not properly considered: e.g. "Most of Our Users Don't Need Accessibility"...
For those who are affected the issue is political.
Read Technically Wrong if you want some illustrations of this issue.