Was it criminal to bomb Dresden? Yes but...
...who started the war? Nazi Germany. Who pushed this war into a genocidal nightmare? It wasn't Mr. Churchill and much less RAF Field Marshall "Bomber" Harris. It was a guy named Adolf Hitler. And what was the reaction of Hitler when Allies were firebombing Nazi Germany? He didn't care. According to Albert Speer [read his "Inside the Third Reich" and "Spandau Diaries"] Hitler wasn't interested in what was happening around him, was totally indifferent to the firebombings, and even went as far to blame and curse the German population for the defeat. You can also read that in many other books of World War II ["The Last Battle" by Cornelius Ryan, "The Fall of Berlin" by Anthony Bevor and so many more]. Even Dr. Goebbels himself admitted blame for the tragedy. At least he was more "realistic". So let us stop this blaming the Allies for this tragedy. Much I wish it had never happened. But those who start wars of aggressions should not complain when the other side lower itself into the same brutality.
P.S.: Have you also forgotten the millions Nazi Germans killed in Eastern Europe, including tens of millions of Russians civilians and military personel? And, finally, Nazi Germans murdered 6 millions Jews. And is not a case "loving Jews" [I myself don't like them much but I know there are good people among them, not much] but a sense of justice and peace to all of us humans. Let us stop crying over the destruction of Dresden in 1945.