Countries understood in the age of TV/newspapers that control of the media was a sovereignty issue. Any nation that wishes to remain truly sovereign, particularly in the English-speaking world is going to have to grasp the nettle and block or force divesture of Meta & the other US social media giants.
Cambridge Analytica was the canary, the gloves are off now. Australia's under-16 social media ban is a good first step but we need to go much further and fast, as much as government control is undesirable at least a democratic government is somewhat accountable, the nexus of US tech giants and it's sprawling intelligence services is not.