And unless everyone is willing to go 100% vegan tomorrow

• we do it until we get a new pandemic
• we wait until climate change, 3°C from food production, destroys enough crops that agriculture collapses
• we eat more of it to die sooner so we don't have to face the consequences of our actions.

And no, I don't belive 100% tommorow is the only way to avoid that, that was your wording. But it has to and will change.