'it's unavoidable for' is correct and usable in written English.
You can use it when talking about a situation that cannot be avoided. For example, "It's unavoidable for us to experience change in our lives."
As I prepare to leave these pages to join the prime minister's speechwriting team, I wonder whether perhaps it's unavoidable for political debate to mostly overlook the muddled reality in which all administrations must deal.
As I moderated Q&A with the speakers and audience, I asked Mathieu Gorge, "What are your thoughts on Apple and Facebook recently being hacked?" "I think it's unavoidable for organizations of that type to be targeted by hackers.
It's unavoidable for most of us.
Thus, it is unavoidable for TCP tounderutilize available bandwidth and its performance degrades severely in wirelessnetworks.
Thus, it is unavoidable for TCP to underutilizesavailable bandwidth and its performance degrades severely in wireless networks [19, 20].
It is unavoidable, for otherwise no meaningful knowledge can be attained.
It is unavoidable for me, for instance, that Caesar crossed the Rubicon, or that most motor vehicles now run on gasoline.
If the process of integrated diagnosis decision is to be scientific, it is unavoidable for it to face complexity and use the idea of complex system to research the diagnosis decision problems.
Channel Switch Overhead: When an SU adjusts his access strategy and switches to other channels, it is unavoidable for the channel switch to result in extra system overhead, such as rendezvous, synchronization, etc.
It is unavoidable for the flows in the error channel since those flows have to get additional slots to transmit data immediately to reduce the average delay time and maintain the fairness, but it should be avoided for the flows in the error-free channel to improve the quality of service for multimedia streaming applications.
Furthermore, we cannot modify the architecture and design of the bought platform, but during the safety certification, it is unavoidable for us to modify the circuit design and retrofit the explosion-proof shell so as to fit the mining products safety standard.
