I can totally relate to your hurt feelings writing this post :D
Every then and now, a news paper is publishing an article about the health benefits of alcohol. Every time, I remain quite sceptical, though.
Most of the conducted studies were mainly done with animals, especially mice. This is something, which was 2013 already criticized by Lachenmeier et al.
Furthermore they stated about the positive effects of wine (I know, you wrote about beer, but you get the point :) ):

On the basis of the result, that more than 100 glasses of wine would have to be consumed to reach a pharmacologically active dosage of resveratrol, our research clearly discredits any consumer recommendation to drink wine in order to indirectly ingest resveratrol for a cancer-protective effect. We agree with Vang et al.[6] that not even the intake of resveratrol in the form of supplements appears to be currently justified for the prevention of cancer, as experimental data and clinical evidence to indicate such a use is lacking. On the contrary, one clinical trial about resveratrol supplementation was halted because of observed adverse effects.

Our initial question can clearly be answered that resveratrol in red wine is not able to protect against the carcinogenic effects of ethanol.

I'm not suggesting, one should stay away from alcohol at all - if you like the taste and feeling, go for it. I do like a nice glass of whisky or wine myself. But one should keep in mind, it's probably quite unlikely, that it benefits your health in any way. Sadly.