The "it's okay to be white" thing isn't he only reason why Pauline Hanson is a white supremacist. But Pauline Hanson has had a long history of being against people of colour...
For starters, The Liberal Party of Australia dumped Pauline Hanson as the 1996 candidate of the Seat of Oxley in Brisbane because of the letter to the editor in The Queensland Times, which criticised financial assistance given to aboriginal students.
Then Pauline Hanson made her maiden speech revolve lots of it around islamophobia (which you have no problem with), I won't read out the speech because it'll violate TOS
https://www.abc.net.au/news/2016-09-15/pauline-hanson-maiden-speech-2016/7847136
Then when she returned to politics in 2016, she made a xenophobic speech and called for immigration ban.
https://www.theguardian.com/australia-news/2016/sep/14/pauline-hanson-first-speech-senate-calls-for-immigration-ban
Then when she was re-elected, she stormed out of Parliament after Welcome to Country, but then again Jacinta Price a Conservative Aboriginal Senator said that Hanson wasn't racist.
https://www.9news.com.au/national/federal-politics-pauline-hanson-storms-out-senate-acknowledgement-of-country-aboriginal-flag/e5a07cc3-3960-4050-9a6e-c806ec973ab9
https://www.youtube.com/watch?v=UzvnzAbuhJU
You wonder why Pauline Hanson is a white supremacist but from what I know, she ain't a white nationalist because if she was, then there would be riots