It is simplistic to claim that the only decline in investments triggered the announcement of quotas in Australia.
This is an assertion that deliberately ignores the proactive nature of government regulation.
Governments do not react in such primary ways; strategic decisions like this are the result of a much deeper and pre-existing political calculation, often motivated by cultural sovereignty.
Consider the long-standing French policy on quotas, developed well before investment declines could serve as a pretext.
To assert otherwise is to deny the complexity of legislative intentions.