This is the point I am also trying to make. At least short term, I do not see meat consumption going down. Maybe younger folks growing up today might understand climate change and the meat industry's contribution to it more than their parents/grandparents and be willing to make changes to their diet, but changes like this take a lot of time, if they happen at all.
In the meantime, anything we can do to lessen the cruelty to factory farmed animals (for ethical reasons) and anything we can do to reduce harm caused by meat industry on the environment, however small, is worth pursuing
If the GP said we will never stop eating meat I would agree. But saying we can't even reduce it is a bit extreme - we successfully reduced many other things (without banning them, just by coercing people - for example cigarettes).
I guess the point is you and others feel so strongly about ways to reduce suffering but couldn't care less about life.
People don’t change their ways very easily. I know I have to fight rolling my eyes whenever someone suggests the the solution is simple: eat less meat.