Own it. Write out a better list and list your ideas for solutions. Go directly over your bosses head and give it to their boss.

Tell them you can create a much better work environment if you were in your bosses position. Worst case, when he shows up to say you need to be terminated, it'll look like he's on the defensive now. Maybe you still get fired, but you probably will anyway without doing this. Now if they give your next job a bad review of you, you can say that they were upset you took initiative on solving office problems, then turn it around to how it was a learning experience about doing things the right way. No matter what it sounds better than getting fired cause you did something dumb while drinking.

Best case they fire or move your boss and you get the job.