How safe is Bitcoin in the world's economic turmoil?
Safer than many if not all the world currencies you can think of, infact the global economy crisis and uncertainty only increases the popularity of Bitcoin because it is seen as a safe space for people avoiding inflation and the drop in their local currency.
This is absolutely true. The increased adoption of Bitcoin in everyday use negatively impacts other currencies, including major global currencies like the euro and dollar. This exacerbates the fiat currency crisis and further encourages people to abandon it. It's an inverse relationship going one way, since the use of fiat currency is fixed and cannot rise, while Bitcoin is still considerable a new project that benefits from the fiat currency crisis.