Only people, who haven't read the epic carefully, n properly would make such an illogical claim dat Draupadi was responsible.
Many people were responsible for the Kurukshetra war. But the biggest reason was LAND.It was because of LAND, THRONE N POWER, that Satyavati's father gave such a horrible condition.It was because of LAND that Dhritarashtra, Duryodhan n Shakuni did such horrible things.People who think that Bheeshm was wrong too, are partially correct. Although, Bheeshm was probably one of the greatest men in the epic, n the man who made the BIGGEST sacrifice ever,I guess he didn't realize that righteousness was more important than a promise. Same mistake was made by Karna as well. However, at the same time, it cannot be denied that it was difficult for them to come out of their oaths.So, many people in their own way contributed to the war.