I can't say I've read that!
I still find it hard sometimes to be honest. Yesterday, I made hubby a vegetarian burger with cheese in it and I have to say, the melted cheese smelled so good. I just have to remember the horrors that went behind making it.
I think for many, it's just a kind of convenience. We've all learned to cook with animal products and to go without means you have to learn to cook new things. That's what makes meat replacements and plant-based milk/yoghurt/cheese so handy for the busy people (or the ones with picky husbands 😅). That just leaves the courage to try something new and not give up after one bad product :-)