Calling for the destruction of Jews is bigoted antisemitism but criticizing a policy of the state of Israel is not. Criticizing the influence of the Israel lobby in the US is not. Advocating for a better life for Palestinians is not. Criticizing the position of Jewish zealots is not -- and is not anti-Israel either. I believe that Israel is entitled to exist peacefully without constant attack but that Palestinians are entitled to a better, less obstructed and more peaceful life as well. The world ought to get on with helping to find a practical, unideological solution to the issue. That said, the right of return is a very difficult subject. Granting the right of return could threaten the essential Jewish nature of Israel as a refuge of last resort for Jews, the historical persecution of whom continues in some areas even today (I've even observed pockets of nonphysical discrimination in the US).