>This is a bit like saying a frat house hazing isn't wrong because no one actually makes the kids drink, the social incentive remains dangerous.
Frats typically do force/heavily encourage members to drink... especially as part of the hazing process for new members.
If it's just all people drinking without being forced into it, that's truly no different than a regular college party, which also provides social incentives to act dangerously but is pretty different from hazing with alcohol.