No need to shout Suzanne.
Despite Lindsay’s cut-and-paste from some US e mail, no one has ever seriously proposed that we do not have a day celebrating Australia. Indigenous people have issues with the 26th January, since they regard the day Philip landed at Sydney Cove to be the beginning of their dispossession.
Also the 26th January 1788 is not really relevant to the founding of colonies other than NSW. The other states have their own Foundation anniversaries.
But perhaps Suzanne would like to tell us how the first European settlers got here in 1788.