Free trade only works when all countries are playing fair, i.e. not using other internal mechanisms to give their producers/manufacturers an (unfair) advantage. It only works when labour costs are similar to ours and quality controls and hygiene and production standards are equal.
Products that fail to meet Australian standards must not be imported. Products that are a threat to human health or could risk our agricultural systems from pests and diseases, that don’t occur in Australia, must not be imported.
Job security, food security and food safety are the primary drivers for a workable free trade policy.