Putin is angry because the US humiliated Russia after the Soviet Union collapsed. Which was reflected in Yeltsin's collapse, through depression and alcoholism. And regardless of the causes of Leningrad's sacking, many of Putin's family died there. All of which has given him a rather negative attitude toward the US and its allies.

And by the way, remember that the US and its allies invaded Russia at the end of WWII, after the Tzar was deposed. So it's not at all surprising that Stalin initially allied Russia with Germany.