Again, what is your solution ? It's unrealistic to expect everyone everywhere will never have an event, etc ever again for the rest of time. Be it a house party or otherwise, the risk is always there. There are consequences to every action but if we care about every consequence like that... it's honestly better to just end all our lives right here. It would be the most net positive action we can take. But that isn't a viable solution either, is it? How do we get everyone to agree to committing suicide?

You're saying a lot of angry words but providing no solutions or suggestions. You're basically being that old man yelling at clouds. We are social creatures and most people can't live in complete isolation forever. Even if we try to, our societies just aren't built for that. People who try often starve to death.