This one is 1 day old and there are plenty more like that.
https://youtu.be/7gmoRvGOLOI The post is from 9 News Australia, and is not about Biden's dementia. It is part of the Nine Entertainment Co., not Sky News, and it is owned by the Packer family, not the Murdoch family. As surprising as this is to you, Murdoch doesn't own all of the media companies in the world, nor in Australia. You have not disproved the main point here: Murdoch's Sky News reports on Biden differently in Australia than his Fox News does in the U.S., AND the harsher Aussie coverage has been banned on YT.
The Guardian now reports SkyNews has been banned from YT over its Covid reports, not Biden's dementia:
Sky News Australia banned from YouTube for seven days over Covid misinformation https://en.wikipedia.org/wiki/Nine_Entertainment