They lack the means to destroy Israel. That has already been demonstrated. Israel, with far greater firepower, evidently can't destroy them either. So why obsess about what they say when they lack the means to accomplish it? What they say is empty words. What has changed, except the fact that you can now talk to them in an open political arena? What will it gain you to NOT talk to them?

Does hating people make you feel good? If so, why criticize them for doing the same back to you?