Eh what? You can definitely kill someone with your bike. Also if you kill yourself in traffic you will raise the risk of traffic related deaths for the responders. Many places in the world riding a bike drunk is as illegal as driving a car drunk.
Even if you assume the the risks outlined in your comment as relatively high likelihood (which I don't), it still makes 0 sense to think it's anywhere near as serious as driving drunk.
Should it be illegal for people to walk around drunk as well?