Jenns, your weary game of moral equivalence is better suited to being played out on Social Media. This is a Military Aviation Forum, albeit a "British dominated" one (a damning verdict in your book no doubt). Most here have served or indeed are serving. They know full well the awfulness of war and how important it is to avoid it at all costs, including meeting the costs of carrying a big stick and speaking softly. When it cannot be avoided then it must be conducted such as to end it ASAP in victory lest delay means it ends in defeat. As has been already pointed out, the only way of taking the war directly to Germany (with whom we were at war, not just with the NAZI Party, the SS, the Gestapo, or even the Wehrmacht, but with Germany) was by bombing, and the only practical way of bombing was by bombing at night. The technology of the time meant that the only practical targets on the whole were cities. For the most part we could at least find them and create the disruption of the German War Economy that would otherwise have flourished unhindered. Techniques and technology allowed for some improved accuracy and hence aiming for particular areas within cities, but to all intents and purposes Area Bombing (ie of cities) was the national policy (not just of Arthur Harris) throughout the war. If it hadn't been then it is my opinion that the Allies would have lost the war. By pinning down enormous German resources (particularly those of ground and air elements of the Luftwaffe) to defend against what was essentially a second front (as confirmed by that suave survivalist, Speer), it allowed for the advance of land armies from the East, South, and West that led to Germany's defeat. You may see all that as British self justification but I see it as the price of freedom. You pays your money and you takes your choice (to pick up yet another expression).
As to:-
We are talking about a statue of a man who in the whole world is seen as a symbol for the systematic slaughtering of civilians.
You really need to get out more!