It definitely is a warcrime, but just about every major battle in WWII is a war-crime by modern standards. The concept of warcrimes exists largely because we don't ever want WWII to happen again. Before that there were geneva conventions which defined war crimes but they were far more limited to the extent that even the Nazis were able to come up with supposed justifications for much of what they did based around [according to them, at least] their having not violated the geneva conventions which existed at the time.
Hiroshima and Nagasaki combined weren't even the biggest war crimes committed by America against the Japanese. I'm avoiding mentioning war-crimes committed by the other side because I don't want to inadvertently make the fallacious argument that they would somehow justify the war crimes we committed, but the argument I do want to make is that these sorts of arguments should be based around who was killed.
Torture is an exception to this because it implies the deliberate infliction of more pain than is necessary to kill the victim, but these sorts of discussions should never be based around the choice of weapon. When I see people constantly criticize the atomic bombings of hiroshima and nagasaki at a far greater rate than similar-scale events such as the repeated firebombings of tokyo or even "normal" battles with massive collateral damage such as Okinawa or Berlin it seems to me that the implication is that you would've been fine with America killing 250k people as long as we had done so with conventional weapons.
Hiroshima and Nagasaki combined weren't even the biggest war crimes committed by America against the Japanese. I'm avoiding mentioning war-crimes committed by the other side because I don't want to inadvertently make the fallacious argument that they would somehow justify the war crimes we committed, but the argument I do want to make is that these sorts of arguments should be based around who was killed.
Torture is an exception to this because it implies the deliberate infliction of more pain than is necessary to kill the victim, but these sorts of discussions should never be based around the choice of weapon. When I see people constantly criticize the atomic bombings of hiroshima and nagasaki at a far greater rate than similar-scale events such as the repeated firebombings of tokyo or even "normal" battles with massive collateral damage such as Okinawa or Berlin it seems to me that the implication is that you would've been fine with America killing 250k people as long as we had done so with conventional weapons.