Google Calendar removed events like Pride and BHM because its holiday list wasn't 'sustainable'

[AZJonnie]

2. Happened last year, and it's actually a pretty reasonable explanation

It's not like they're now purposefully excluding them from a readily available data set, it's that they've stopped trying to manually add thousands of events and observances happening across the globe. As they learned, there's probably 10's of 1000's of dates/months/years that could be marked as 'important' by someone, somewhere, and once you start adding any of them, then people start complaining why something that's important to their relatively small group of people isn't 'on the list', and feel like 'others' are being regarding as 'more important than them'. Then there'd also be a lot of intricate work involved in the geolocation implementation of these kinds of things.

This strikes me as something that was 'nice while it lasted', but can easily see why it'd be discontinued. Not worth the cost and hassle, basically.