"Morally, an approval would have been right." Why? Bosnian Forces killed war prisoners, few thousands, figures are still unknown... It is difficult to know, but if the Bosnian had 8,000 men in position to fight, the town would have never fallen.
In order to match the number of 8,000, the Bosnian Government and UN are taking all unidentified bodies, do DNA (as DNA can show religion), but as all Bosnian are related, it is quite a complex thing.

As part of a reconciliation process, it doesn't seems to work either, as shown during the commemoration...

Awful as it was, it is not a genocide, but a war crime (women and children were not killed). The Hague Tribunal took a political stance on this one.

More than 100,000 Serbs were expelled from Kosovo, Churches burned (not that I am against to destroy Churches but not during an ethnic cleansing...), few thousands killed, but this was not a genocide. Same in Croatia, same in Bosnia.

So, why Srebrenica differed from the others?