Earlier quoted context omitted.
Eating less beef will reduce the market price and make it cheaper for everyone else, increasing their consumption accordingly. The whole point of a capitalist economy is to “route around inefficiency”, in the same way the internet is designed to “route around damage”. Any single player or even a large contingent of players, who act inefficiently, are only increasing the alpha available for another player to exploit.…
If people eat less meat because they have a larger tax, then no, capitalism won’t adapt that way. I didn’t mention how those changes should be adopted. As per Adam Smith: capitalism only works in small, well-defined markets. It was never meant as an end-all control system. Governments can alter the rules of the game we play and they are (indirectly) controlled by us, as least in democractic countries.
however, you have to really change the rules of the game for everyone, such that consumption is actually substantially curtailed. even with a country-level tax, you're only making it cheaper for other countries who don't care. We saw this play out with Russian oil last year - banning it from the West didn't make it go away, it just made it cheaper for certain other states to import it. The commodity market is global.
(We can certainly enforce these kinds of rules globally when there is political will to do so - Iran sanctions are one example. If you do business with Iran, you won't do business with anyone who uses SWIFT, or anyone who does business with anyone who uses SWIFT. A line is drawn between the "sanctions-compliant" world and the "sanctions-non-compliant" world and it's generally extremely effective such that smuggling incidents are international news.)
The fundamental point I'm trying to make here is the "capitalism routes around inefficiency/morality". That's what it's designed to do, in the same way the internet routes around infrastructure damage (or censorship etc, which is fundamentally infrastructure damage). By taking a moral stand, you only increase the alpha available for other players to exploit.
These "individual moralistic stand" approaches like personal-scale recycling are inherently less effective than taxing producers, or outright bans. The reason they are pushed is because they are ineffective, and because they stall out the political will to adopt real solutions that would be effective.