curiousity
I'm starting to believe that you aren't arguing in good faith, in part because your statements are just thrown out there without any evidence or citation. Sure, a pound of beef or chicken contains more protein or calories than a pound of vegetables. But that's a nonsensical and misleading claim - many more pounds of vegetables went into producing that pound of beef and chicken. Many of those calories, by the way, were exhausted by the metabolic processes of those animals too. A much more efficient utilization of resources would involve just using those vegetable calories directly.
[1] http://journals.sagepub.com/doi/full/10.1177/194008291300600...
That said, I think my initial point still stands: Everyone needs to do what they can to both reduce their own impact, and to pressure governments and corporations to reduce theirs.
Let me offer an alternative point of view. Yes, the climate will be irreparably damaged. Yes, lots of humnas will suffer. These things seem to be unavoidable. The harm to both our planet and its citizens is happening as we speak. However, the scale to which this occurs is in our control.
This is an all-hands-on-deck sort of scenario. Everyone will need to pitch in, whatever they can, however they can. Travel less internationally. Reduce (or eliminate if possible) your meat and animal product consumption. Buy less. Vote for candidates that support renewable energy and environmentally friendly initiatives. There's a thousand ways an individual can help by voting with their wallet, their time, and their participation in their political system.
Everything you do, every choice you make today and for the rest of your life, potentially affects the lives of future generations. In my opinion, the most harmful thing you can do, is choosing to do nothing.
Edit: Seeing this is Hacker News, I know a lot of people are going to be commenting with technical suggestions - lab grown meats, renewable energy sources, carbon capture, geoengineering etc. I am very much in favour of these solutions. However, (as far as I know) none of these currently exist at such a scale or level of sophistication so as to make my initial point irrelevant.
As for the second point, you should probably listen to your wife. The status quo will be here when you get back from your break. That is assuming, you mean break to mean something like "holiday" or "vacation".