If Israel nukes someplace (which China has NOT done yet), it will create a backlash that will get Israel destroyed and if the global destruction done by Israel is bad enough, many of the Jews around the world will also pay a heavy price. This is just human nature as has been clearly documented in over 5000 years of history (check out the Torah, Bible and other ancient writings). Is it right, probably not, but that is just how we humans deal with major problems like nuclear destruction. It is not antisemetic, just reality. BTW - you might want to check out Gaza where individual Gazans are getting killed for the actions of just a few people. If the Jews can do it to Gazans, why is it wrong for the world to retaliate against all Jews after a nuclear holocaust started by the Jews? What is OK in one situation should be OK in another.
2 Turkish security personnel killed, 24 wounded by Kurdish suicide bomb in eastern Turkey (Reuters)
from the article: Report: Nixon feared Israeli nukes would spur arms race