You obviously haven't been following the news. From out there in the EU it was perhaps difficult for you to catch the evictions in Sheikh Jarrah and Silwan over the past year or so, the demolitions, the implanting of settlers into parts of East Jerusalem that had no Jewish residents in them. When you load the camel's back this heavily, it takes one straw to break it. The Hurva was the straw, but the accumulation of anger and provocations weighed several tons (tonnes to you) already.
200 feared dead in latest migrant disaster off Libya's coast (AP)
from the article: IDF official: Neither Israel nor PA wants violence