I’m generally on the side of the Poles in most things but this.....guys....this is not productive. All this stuff was laid to rest years ago. It happened. It was awful. But dredging it up yet again right now serves no purpose.
Everybody as historical grievances against everybody else. The world can be a cold cruel place and lots of nasty shit has been done to innocent people. Like for example the 15 million Germans who suffered ethnic cleansing - the largest case of ethnic cleansing in history - at the end of WWII. An estimated 1 million of them died as a result. There were numerous instances of brutality toward civilians including robbery, mass rapes, cold blooded murder, etc. About half of what is now Poland used to be German land. German property owners who had their homes stolen from them were never compensated for the theft of their property. The same happened in the Sudetenland.
Let it go. Nothing good will come of this.