For anyone who's interested in supporting the State of Israel, a new and prestigious group called the Friends of Israel Initiative has been organized to counter efforts to de-legitimize and demonize that country.
The group includes Jose Maria Asnar, former prime minister of Spain, and former Czech president Vaclav Havel, among others. As Aznar puts it: "All we want is a normal and reasonable conversation about Israel. Surely, that is not too much to ask."
If you want to support the group, you can sign the petition on their website here and also sign up to receive their newsletters.