How to edit holidays

How do I edit the holidays on the iPhone that do not apply to me ?

here is what I found thus far, I would think this would be an easy fix for Apple to do.

If you turned off the Holiday Calendar on iPhone or iPad this way, no more holidays will show on the devices calendar.

What Holidays are shown on iPhone and iPad anyway?

The Holiday Calendar on iPhone and iPad is very broad, inclusive of a diverse array of holidays for a wide variety of purposes that may or may not apply to many people. By default the iOS Calendar (for US) includes everything from Boxing Day, Holi, Christmas Eve, Christmas, Kwanza, Hanukah, Ramadan, Cinco De Mayo, New Years Eve, New Years, Chinese New Year, Memorial Day, Presidents Day, Flag Day, Mother’s Day, Father’s Day, St Patricks Day, Tax Day, Palm Sunday, Easter, Orthodox Easter, Good Friday, Passover, April Fool’s Day, Martin Luther King Jr Day, Groundhog Day, Valentines Day, Eid Al-Fitr, Flag Day, Labor Day, Ashura, Rosh Hoshanah, Eid Al-Adha, Independence Day, Yom Kippur, Columbus Day, Indigenous Peoples Day, Halloween, Diwali, Veterans Day, Thanksgiving, Inauguration Day, and more. 

Can I delete all holidays from the Calendar on iPhone and iPad?

Yes, if you would rather delete the holiday calendar instead of simply hiding it and disabling it, you can manually delete the entire holiday calendar from your iPhone or iPad.

To delete the entire Holiday Calendar completely from iPhone or iPad, Go to the Calendars section of the Calendar app, then tap on the (i) button next to the Holiday Calendar name, then scroll down and choose “Delete Calendar”.

Can I only delete specific Holidays from Calendar that don’t apply to me?

For the time being it turns out that you can not remove or delete specific Holidays from the Holiday Calendar, even if they do not apply to you. 

Thus if you want to remove one Holiday, you would have to remove all of them.

What if I don’t celebrate a particular holiday or religion? Can I remove those holidays?

Currently, you can not selectively disable, delete, or hide particular holidays on iPhone or iPad. You must either see all holidays shown in the Holiday Calendar, or no holidays.

However, one workaround solution is to disable and hide all holidays from the Calendar, and then manually add the holidays that apply to you by adding them to your own calendar individually.