I agree with your assessment. I am pretty cynical that most people will give up meat consumption. Lab grown meats at scale or substitutes are really going to drive the reduction in emissions we need.
I fully agree, I think we could get bigger wins scaling up artificial meats than many other solutions we're spending money on, like hydrogen fuel cell vehicles or nuclear fusion. While those great technologies will be amazing in the future, we're overlooking what we can do now in the hopes of a big win later.