Yes it will.
A study mentioned on Our World in Data suggests that if the entire world adopted a vegan diet, our total agricultural land use could shrink dramatically, from 4.1 billion hectares to 1 billion hectares, a reduction of 75% . This reduction is significant because agriculture, particularly livestock farming, is a major contributor to greenhouse gas emissions.
Further, a research team, including scientists from Leiden University, found that if high-income countries switched to a plant-based diet, almost 100 billion tons of CO2 could be pulled out of the atmosphere by the end of the century. This switch would reduce annual agricultural production emissions by 61%, and converting former cropland and pastures to their natural state could remove another 98.3 billion tons of carbon dioxide from the atmosphere by the end of the century .
Additionally, a study by scientists from Stanford University and the University of California, Berkeley, found that phasing out animal agriculture over the next 15 years would have the same effect as a 68% reduction in carbon dioxide emissions through 2100. This would contribute 52% of the net emission reductions necessary to limit global warming to 2 degrees Celsius above preindustrial levels. The phase-out of animal agriculture could create a 30-year pause in net greenhouse gas emissions and offset almost 70% of the heating effect of those emissions through the end of the century .
If people stopped eating meat and we turned the massive amount of land we waste raising animals to slaughter into carbon sinks it absolutely would be enough. But go on justifying your addiction that’s literally killing the planet. I’m sure your grandchildren would agree.