Freedom or liberty in a more authentic, humanistic sense, also in the same way religious people understand it (no coincidence that Islam literally translates to 'submission' (to god)) grounds you in reason, reality and requires that understanding what legitimate authority is like. Only from that point can you actually start to make genuinely free decisions, you need to be set free from(!) a whole bunch of things first.
It's also btw why so many young people today, less coerced than ever before, don't feel free at all, just disoriented, and why they flock to political authoritarianism. The sort of relativism invited in by not properly understanding the relationship between authority and freedom has the ironical result of creating demand for some of the very worst forms of oppression.
Libertarian freedom was hard won, it works, and it would be a damn shame to give it up due to the anxiety experienced by 20-somethings. Relativism is in no way the certain outcome of liberal societies. To the extent that there is a problem, it's non-judgmentalism, the trendy idea that it is suspect to render judgements and live by them.
In fact, one of the primary responsibilities of the government is to prevent tragedy of the commons. Everything else can be driven privately.
I'm aware that most places in the world are not liberal. Fine with me. There's no need for every country or culture to share the same values. But in countries where libertarian freedom is a value, e.g. the US and UK, it should be defended.
Moreover, if libertarianism has value, it should be defensible without appeal to the support or lack of support in popular culture.
Singapore and China gain something but they're also giving something up. People can disagree over whether that trade if justified but not over whether there's a trade.