why Communism? Why did so many American Jews choose that route? They've enjoyed America's Freedom and Capitalism more than most have. And i do give them credit for that. But why push all the Socialist/Communist Propaganda in Media? It really is perplexing.
I will respond to this question, "why Communism? Why did so many American Jews choose that route?" Your next question asserts something that is not true.
The Marxian ideal of a classless society after the Revolution is similar to the Jewish ideal of life on earth after the coming of the Messiah. In both there will be no poverty or war.
The evolution of the Jewish word מלך המשיח (Meleḵ ha-Mašīaḥ

can be traced through the Bible. Originally the Messiah is "the anointed one." The coronation ceremony of Israelite kings included pouring olive oil on the heads of the new monarch. Consequently, the Israelite king was the anointed one or "ha-Mašīaḥ."
In I Samuel 24:6 David says of Saul "And he said unto his men, The LORD forbid that I should do this thing unto my master,
the LORD'S anointed, to stretch forth mine hand against him, seeing he is the anointed of the LORD."
When David says this Saul was the king of the Israelits. "The Lord's anointed" could be translated, "Yahweh's Messiah."
After King Saul was killed by the Philistines at the Battle of Mount Gilboa David became the king of the Israelites. As king David did not conquer the Philistines, but he ended the possibility that they would conquer Israel. David did conquer Syria and three nations living in what is now Jordan. These were from north to south the Ammonites, the Moabites, and the Edomites.
Solomon was David's son. After Solomon died the twelve tribes of Israel divided into two kingdoms. These are called in the Bible the Northern Kingdom, or Israel, and the Southern Kingdom, or Judah. Syria, the Ammonites, the Moabites, and the Edomites became independent. As independent nations they often fought against Israel, Judah, or both.
In addition, the Israelites came to be threatened by Assyria. This was a much larger nation in what is now northern Iraq. Eventually Assyria destroyed the Northern Kingdom. After that the Chaldeans, who are also called "Babylonians" because Babylon was their capital, revolted against Assyria, and eventually destroyed the Southern Kingdom.
The dynasty David established continued to exist until the Babylonian Captivity, but most of the time it ruled an area much smaller than David's kingdom.
While all of this was happening the Jews were longing for a king who would be a member of the Davidic Dynasty, and who would restore David's Empire. Thus the meaning of "Messiah changed.
David's Empire was as predatory as those of Assyria and Babylonian. Syria, Ammon, Moab, and Edom were forced to pay tribute. They received few benefits in return.
However, as time went by the Jews became more universalistic in their aspirations. They came to believe that the Jewish Messiah would end war and poverty throughout the world.
Karl Marx did not describe the classless society that he believed would follow the Revolution. It was - perhaps inadvertently - described in John Lennon's song "Imagine."
This contains the following passages, which resemble the Jewish image of life after the coming of the Messiah:
Imagine...
Nothing to kill or die for...
Imagine...
No need for greed or hunger
A brotherhood of man
Imagine all the people
Sharing all the world.
JOHN LENNON LYRICS - Imagine
Because of the similarity of the Jewish hope for the Messianic Age with the Marxist hope for the Classless Society Marxism has often been appealing to Jews who lost their religious faith.