Israel doesn't "get away" with anything today because of Holocaust guilt, they "get away" with things because they're the only democracy in the mid-east, and they happen to develop A LOT of technology-- computer tech, military gear, medicines, hydroponics, energy management. The fact that they're able to maintain the same level of per-capita productivity concerning the circumstances is nothing short of amazing. Any country that would "embargo" them would be hurting themselves more than Israel.
As for anti-Semitism, being anti-Israel doesn't make you an anti-Semite. Being otherwise coherently intelligent on these boards, demonstrating a clear understanding of radical islam and the middle-eastern phenomenon, yet treating Israel like the Theo-fascist state and Hamas as the "freedom fighters" does though imho.
As Abrofman says, ultimately if Israel "wins" they won't be coming to cut-off our heads. You'll have a country you can hate for a number of personal reasons, but violence against neighboring countries and a Jew holy war across the mid-east just isn't going to happen. If Hamas wins you basically have every Jew exterminated, sharia law implemented, human rights TRULY and consistently violated, a definitive holy war of some type, and an end game that would include your blood (if they had a choice). So, from a purely pragmatic or Atheist standpoint, I see it hard to justify solidarity with a society that suppresses women, executes gays, and would kill me if they had the chance. Supporting a side that embodies the aforementioned facts, clearly to your own detriment, then using huge hyperbole in your argument, is what makes one look like an anti-Semite.
Hamas only exist as a reaction to Israel's treatment of Palestinians. If Israel wasn't blockading Palestinian land, annexing their territory and destroying their towns to build settlements, cutting off the flow of utilities and goods and basically destroying Gaza and the West Bank an inch at a time, then the Palestinians wouldn't be so angry. Anger makes people stupid, stupid enough to support a party which implements a policy of violence and terrorism which they're too weak to carry through on, invoking further acute violent retribution from Israel and allowing the media to portray the conflict as one between equals, instead of the occupation and conquest of one by the other. It's tragic, because if they'd stop firing their (practically useless) rockets, then Israel would have no excuse to take military action and to try gobble up more Palestinian territory and Gaza and the West Bank would be recognized for the massive-but-shrinking concentration camps that they are.
Of course, if that happened, then Israel would have no excuse to keep up the military action and blockades and would have to slow down their annexation of Palestine, so it wouldn't surprise me if, even if higher reason prevailed in Palestine and they ditched Hamas and stopped their futile efforts at fighting back so they could no longer be portrayed as a country of evil terrorists, Israel would step in and find a way to stir the violence up again anyway as an excuse to keep the blockades up, the rockets flying, the Palestinians dying, and the settlements building.
But at the end of the day, the responsibility for this conflict lies solely in Israel's hands. They're the ones with the power to end it, but they refuse to stop building settlements, and as long as they keep taking more Palestinian land, the Palestinians are going to be too enraged to act in their best interest (I'm not sure I'd be able to restrain myself if someone did to my country what is being done to theirs). It's like an adult bashing up a kid, punching him twice for every time the kid tries to punch back once in self defense. Maybe if the kid stops fighting back the adult will stop bashing him, but even if sheer instinct doesn't drive him to self defense, he has no way of knowing that curling up in a ball and waiting it out will result in the adult not bashing them to death.
Problem is that, at the end of the day, Israel doesn't want peace, they want the entirety of the land they believe was allotted to them by God, and this conflict is going to continue until Gaza and the West Bank are wholly part of Israel, or until the west threatens to cut off military and economic support (which is unlikely, unless something major goes down in the US).
This is the process that Israel wants to complete, and they know all they have to do is maintain the status quo and it will happen eventually, even if it takes another 50 years, or another 100. After all, in their minds they're God's anointed people, and it's the land God promised them, so they can justify anything done to take it and they can afford to be patient.
