My guess without proof is both Nazis and Hitlerowce are new politically correct Euro terms to minimize Germany's responsibility because Germany is now a friend
No, it isn`t new. It originated when Poland was in the communist block together with East Germany which was an ally then. Hitlerowcy was the most popular term during communist times and it is still used today, although after cases of whitening their past by Germans, Poles are replacing it with the proper name - Germans. The monument was erected in communist times - 1984, hence hilerowcy on it.
The execution story
pl.wikipedia.org/wiki/Egzekucja_przy_ulicy_Dworkowej
The monument
pl.wikipedia.org/wiki/Pomnik_%C5%BCo%C5%82nierzy_%E2%80%9EBaszty%E2%80%9D_w_Warszawie
How pathetic excuse for oxygen breathing creature like you can be so shameless as to flout this forum with it ignorance and idiotic guesses?
Instead of abusing people, especially when you litter this forum with idiotic trash yourself practically in every post, you could offer the explanation as I did above. Why didn`t you do it, Mr Expat-who-knows-nothing-about-Poland, yet persists to play an expert on Polish things?