People could have all the variety they wanted, and still alcohol wouldn't be in the top 30 drinks by taste, and people still claim they like the taste. This doesn't make sense.

I'm pretty sure some alcoholic drinks would make it into my top 30, actually.

And yes, even if alcohol doesn't make it into the top 30, it still makes sense. It's entirely possible to like more than 30 things. Something not making it into my 'top 30' (or 'top X' for whatever X) doesn't mean I don't like it.

Also, I don't see your list above logically implying not liking alcoholic drinks (though I couldn't 'chug' a milkshake, so that might be relevant). If you add 'I like the taste of alcoholic drinks' I don't see any contradiction, or even a tension, with the things you list.