We need to abandon fossil fuels at some point
no
we will eventually quit using them when they are less efficient/more expensive that alternatives.
Also why should meat continue to be mass-produced, when we all realize that it's bad for the environment?
"also, why should computers continue to be mass produced, when we all realize that it's bad for the environment." You know that mass producing soy beans is bad for the environment too. So is manufacturing clothing. And it's much more "natural" for humans to eat meat than it is for them to wear clothing.