There is almost no public transport outside cities. I don't remember the last time I had the opportunity to use one.
As for meat, I'm not vegan, but I could be if seiten was more common.
It's not just meat. Milk, cheese and related products (pizza?), clothing, oils, gas production, ectera ectera. Even fertilizer for crops. I'd rather have sustainable earth population than give up things that make me happy
How about "we should regulate our birth rates and constant population growth for your capitalist machine is not a healthy way forward for this planet for literally anyone living here except for the rich" instead of your "so you want a genocide?"