The fact that men hunted was secondary to the fact that hunting ensured communities could survive. If the idea is that eating meat is manly because men used to be hunters, then really the conclusion should be that providing for your community and looking after those around you is what makes you a man. In those terms, the idea that meat-eating is masculine is farcical, as the modern-day consumption of meat negatively impacts those around us, whether by increasing the risk of pandemics or being a significant contributor to the climate crisis.