Including modern Israel which was founded by socialists, hosts work communes, has free healthcare, high taxes, and a big bossy government with a lot of weapons and a lust for neighboring land. Many Muslims are politically conservative so it's not just socialism driving it, although leftist envy is a big part of it.
They have weapons because if they don’t the Muslims will take it and kill every Jew they can get their hands on. If they lusted after other people’s land they would not exchanged half the Sinai for peace. They also left southern Lebanon which they were in to protect northern Israel. Many Christians were murdered by the Muslims when Israel left. Show me the lust for conquest of land. Show me mis-use of the weapons they have at their disposal. Why do you think the commandos that landed on the ship used paintball guns? Who in their right mind would use paintball guns against on a ship loaded with Al-Qaeda terrorists? Only Jews would because the world judges them so harshly for doing anything.
When WWII came around the Arab Muslims sided with Hitler. Nazism is a form of Leftism. When they went away they sided with the Soviet Union. Communism is also another form of Leftism. After multiple decades of being Socialized it has made Islam much more aggressive like it used to be.
But you are right about envy. They do hate what Israel has and has created. Jews took a sandlot and turned it into an oasis. All Muslims know how to do is destroy.