I don't get how somebody being sober would enjoy sex with a clearly drunk person.

Two times I've had men pursuing sex with me while they were mildly drunk, I'd want to do it but I refused because I knew I had the upper hand. Mind you they weren't even that drunk and I also had a few and they were the ones inviting me but I still kept my conscious mind telling me no, it's not right.
People need to discipline themselves better if they have the "opportunity" to fuck with another person who's in a worse state of mind and they take it without hesitation. It shows you basically cannot get anyone who's thinking reasonably. Not really a thing to brag about or remember fondly.