That looks like a pretty great answer, my friend. hope you have a wonderful day.
Answer:
The first portion: Ultimately pointless as it was fierce and acrimonious, means that that it was as much of a waste of time as it was aggressive and fueled by fury. Second they acknowledge that it was not that the couldn't prevent it but they didn't know what happened.
Explanation:
Your verbal phrase is "to see" and the type is "infinitive." I do hope this helps you!