Israel are doing many bad things and have for a very long time. People really aren't ignoring what is happening elsewhere, perhaps you just don't know about what is happening elsewhere because your focus is on Israel?
The EU have sanctions in place to target the Assad regime and its supporters, as well as sectors of the economy from which the regime profits. In 2011 their trade agreement was suspended for trade in crude oil, petroleum products, gold, precious metals and diamonds. The situation is constantly monitored and sanctions updated as needed. Almost 4.5million Syrians nearly a fifth of the pre war population have made their way to Europe. The EU have delivered 35 billion in aid to Syria since 2012 to try and support stabilisation and resilience in Syria and the surrounding countries.
It's laughable to suggest that the situation in other countries is ignored. Lots of people would just like the situation with Israel to be treated like the situation on other countries and have trade agreements suspended and sanctions put in place.