> While Google hasn’t harbored the violent leftists protests that we’re seeing at universities, the frequent shaming in TGIF and in our culture has created the same silence, psychologically unsafe environment.
What he does is list "compassion for the weak" as a "left bias". That's not necessarily a statement in support of leftist ideals when combined with this two assertions:
> In addition to the Left’s affinity for those it sees as weak, humans are generally biased towards protecting females.
> The same compassion for those seen as weak creates political correctness[11], which constrains discourse and is complacent to the extremely sensitive PC-authoritarians that use violence and shaming to advance their cause
(Which, BTW, is right before the first thing I quoted.)