Both parties are right.
The Humanitarian activists in the flotilla did the right thing by trying to help the people trapped in Gaza by reaching some aid to them. The most important construction material cement is banned by Israel. So they carried a lot of cement. Nothing wrong in this. Some people wanted to be martyr. So they were granted their wish by the IDF. But, martyrdom cannot be achieved peacefully. I think the IDF needed some provocation to grant them with martyrdom. So all people definitely were not peaceful. But the cause was right.

The IDF did their duty by demanding the cargo to be unloaded at Ashod to inspect it. They are wary of weapons being smuggled into gaza.
So the situation is a deadlock. Can only be solved by a full scale war.