I think it's not that hard to argue that if %30-40 of your export economy evaporates overnight and you lose 100 billion in potential revenue(about 10% of 2023 Turkish GDP), you are still very much shafted. We don't have trillions of dollars lying in the soil, waiting to be extracted like Russia does. We start to feel the outcome of that lost revenue in an instant.Decoupled means that you no longer necessarily need them; it would be economically damaging without them, but they are no longer absolutely essential as they were 15-20 years ago.
The trend will also increase: trade volume will rise with the US and EU, but measured against the world without the US and EU, the ratio will be 60-70% world (without US and EU) and 30-40% US and EU. I call this decoupling the economy, i.e., no longer creating exclusive dependencies on a single power bloc.
Does Turkey expand its markets to not be beholden to a single market? Very much so yes. Does it mean Turkey have managed to or plan to decouple itself from western economies? Not at all.