A lot of holidays are associated with religion and colonialism, but I think it would be a lot better if we had holidays that were universally recognised regardless of your beliefs.

Take my home country of Australia. You of course have the Christian originated holidays of Easter and Christmas, and Australia Day is awful (it's pretty much celebrating the colonialism and slaughter of the indigenous peoples of Australia).

New Years should stay, it's universally recognised for everybody using the Gregorian calendar, and memorial days for those who have died in war is also important to keep (like ANZAC day!), as well as the various independence days

Personally, I would propose the revival of the summer and winter solstices (the longest and shortest days of the year, reversed for the southern hemisphere), and May 8th as the new Australia Day (mate!)

What holidays do you think should be universally celebrated?