While I am respectful to the German people for the massive loss of life I do take exception to the use of the word terrorism here. It was no such thing. We were in a war with Germany; and one which we did not start. Their military had tried to obliterate London and Coventry and we very nearly lost that war. I suggest that humilty should is shown for everyone who died or suffered during the war, not just one city and one event.
To be fair,
"Terrorism is commonly defined as violent acts (or threat of violent acts) intended to create fear (terror), perpetrated for a religious, political, or ideological goal, and which deliberately target or disregard the safety of non-combatants (e.g., neutral military personnel or civilians)."
There are other definitions which obviously related to none state sponsored actions, but it's all pending on what definition is being used at the time.
Bombing of cities was also caused to damage moral & reduce the inclination of factions to fight, something which all groups engaged in at different levels. War isn't something you can package up into a good guy/bad guy dichotomy, it's just a long list of decimals in between - all with some good & bad in different measures.
I do agree with what your saying overall thought - bombing Dresden was no worse morally than bombing Coventry, or any other major city - no singular act of this kind is really that unique sadly. Neither would I define it as terrorism based on the popular definition - state terrorism would be a more accurate term to use.
An interesting point on the matter,
"Historian Henry Commager wrote that "Even when definitions of terrorism allow for state terrorism, state actions in this area tend to be seen through the prism of war or national self-defense, not terror.”
While states may accuse other states of state-sponsored terrorism when they support insurgencies, individuals who accuse their governments of terrorism are seen as radicals, because actions by legitimate governments are not generally seen as illegitimate. Academic writing tends to follow the definitions accepted by states. Most states use the term "terrorism" for non-state actors only."