“Border issues were decided already in Teheran 1943”
As I said, waging war on the Soviets to drive them out of Eastern Europe was never an obligation, so no betrayal could have occured.
“The US had not any right to recognize illegal government and ignore legal one.”
I’m not sure what you mean by an ‘illegal government’. If you mean a non-elected government, then the idea that the U.S. has no right to recognize a non-elected government is incorrect. As a sovereign nation, the U.S. can recognize any government it wishes. What authority are you referring to when you say the U.S. has no right to recognize non-democratic governments? And how would the U.S. be able to win the cold war against the Soveit Union without recognizing, and working with, the non-democratic adversaries of the Soviet Union? Taking away this right would be a direct violation of U.S. soverienty and act as an impediment to U.S. interests abroad.
I understand that you would wish to erase Polish question from the WWII history but it happened and you must deal with it. Once again I repeat that nobody expected war against Soviet Union and this was still a betrayal. Of course you could recognize Soviet installed government for your own but later you should bear consequences of such decision. This is not big price for you I suppose just spoil the image a bit among those few people interested in this issue.