I presume you know that there are millions of couples in the same bind for decent work as you are, and that these differences in expectations over breadwinner roles can readily lead to divorces--when husbands are very touchy because of the shame/embarrassment of not being able to earn the main income and wives are irate that they have to cope with the long hours and disgusted with husbands for not doing more. You would probably not like it if your positions were reversed--if your husband complained about you not getting up as early as he does for work because he's the one with a stringent work schedule. Drinking is a normal reaction to disappointment with life, and can eventually lead to greater loss of control and marital conflict than you have now.
You didn't cause this trap, America's economy did. But you could work on a plan to make your future better than your present, by clarifying your values and setting goals for more meaningful work, more satisfying and meaningful leisure, more financial security or all three of these. It might be energizing for your husband to explore his hopes of a more meaningful employment (including starting his own business). New training, new horizons and new passions could give you access to the energies. There are books on values clarification and job counseling resources at community colleges. The psychological burden of career loss has fallen disproportionately on men 50 and older, approximately 80% of those downsized in mid-career are men. When the prospects of restoring one's prior income and profiting from 20-30 years of expertise are very slim, one may restore the joy of living by seeking NEW challenges, CREATIVE or CLEVER new paths, and doing what one is passionate about.
I don't expect that what you face as a couple will be simple. But developing more dimensions of PURPOSE for your lives together could help you graduate from what may feel like barely treading water to swimming with more energy and resolve across life's currents toward a better lifestyle. And that change in daily living (which might include physical workouts for your husband) could give you reason to skip the drinking as passive ways to make yourselves feel good.
I would also look for other sources of counsel on work changes after 50, such as AARP online.