Vegans are disgusted by what meat actually is and where it comes from as opposed to the taste, texture and flavour. It would be the equivalent of you consuming human meat your whole life being unaware of what that actually means then finding out and switching to a plant based diet. Obviously, you’d be repulsed that you’d been cannibalistic but you’d also miss what you were raised to eat, so you may want to try to simulate it.
This is how it is for vegans with non human animal meat. Some of us miss the texture, the taste and the flavours because it’s what we were raised on, so it’s nice to have the option to eat something similar made out of cruelty free foods.
I hope this makes sense. I’ve tried my best to help you to understand.