People are impatient AF in heroic++

Just had a group disband in a heroic++ cause i the healer asked if we could do 1 extra boss since i really need the gear from it. DPS got tilted since "ye sorry im leaving, this is gonna take forever". Other times if theres 1 wipe to something stupid people insta leave. Trying to gear up is a pain cause of the community that i often meet, not all are like this. But in most groups i have been in so far theres always 1-2 really impatient people that make the group disband.. rant