Any economic system is going to face enormous pressure with the mass demand not being addressed, capitalistic or not. The demand side of the equation is going to be changed if you want to avoid an uprising. We’re not talking about some small level of reduction in production

For instance, if you wanted to move to a grass-fed only beef production, you could only supply at most around a quarter of all current beef production while using 100% of grassland (which would create deforestation pressure). This is while simultaneously increasing methane emissions and number of cattle slaughtered. If you want to avoid a methane emission increase, you’d need to go far lower production

We model a nationwide transition [in the US] from grain- to grass-finishing systems using demographics of present-day beef cattle. In order to produce the same quantity of beef as the present-day system, we find that a nationwide shift to exclusively grass-fed beef would require increasing the national cattle herd from 77 to 100 million cattle, an increase of 30%. We also find that the current pastureland grass resource can support only 27% of the current beef supply (27 million cattle), an amount 30% smaller than prior estimates

Taken together, an exclusively grass-fed beef cattle herd would raise the United States’ total methane emissions by approximately 8%.

https://iopscience.iop.org/article/10.1088/1748-9326/aad401/pdf