Easter is most certainly a US holiday; it is the 4th most commonly celebrated holiday in the US (behind Christmas, Thanksgiving, and Mother's Day). Good Friday is a federal holiday observed in twelve states with government offices closed and generally with paid time off.
The holi holiday may well be observed by the resident Hindus of the United States, but it is decidedly not an official US holiday nor even one popularly celebrated in the states. In 2017, American Hindus accounted for an estimated 1.0% of the total US population, representing roughly one million people.
Religious holiday observations and populations notwithstanding, I do not wish to disable ALL holidays on my calendar app. I selected 'US holidays', not US religious holidays (for which there is no option anyway).
I was simply asking if anyone knew how to disable non-US holidays selectively without, obviously, disabling the entire app feature.
I gather the consensus is that it cannot be done for there is no way to 'unsubscribe from the calendar and subscribe to the one that contains [sic] the holidays' I wish to see instead.
Thanks for all your help.