I had to read up on what alpha gal allergy is and what causes it normally.

https://www.cdc.gov/ticks/alpha-gal/index.html

https://www.garvan.org.au/news-events/news/genetic-and-molecular-insights-into-dangerous-tick-bite-related-meat-allergy-revealed

I also read about red meat and the various issues associated with red meat consumption. This included the nutritional benefits.

https://www.diabetes.co.uk/food/red-meat.html

https://sentientmedia.org/why-is-eating-meat-bad-for-the-environment/

What do you think about inoculating babies with an alpha gal allergy so they grow up allergic to red meat?

I don't particularly like the idea of giving people a life threatening allergy. Nor do I like the idea of forcibly restricting a person's diet, thereby restricting their personal autonomy. I try to stick with white meat and fish as much as possible. But I do like being able to eat red meat like pork, beef, and goat.

Scientists have come up with ideas for circular food economies that incorporate animals that produce red meat. We could all have some red meat in our diets, a lot less than what is currently consumed, and the system as a whole could be less resource intensive than if we were all on a vegan diet. So I'm not convinced that introducing a food allergy for red meat is strictly necessary if the goal is reducing the health, environmental, and humane costs or red meat consumption. I found out about circular food economies in this article:

https://knowablemagazine.org/article/food-environment/2022/how-much-meat-can-we-eat-sustainably#:~:text=The%20upshot%20is,the%20right%20amounts

That being said, climate change is going take drastic action to course correct at this point. Our current societies are not sustainable and something about the way we all live is going to have to change if we want to avoid the worse effects of climate change. That change doesn't have to be giving up red meat entirely, but it certainly could. I would rather we stop producing cattle entirely, then not be able to eat any form of red meat at all.