I think you didn’t understand veganism: the goal is not to remove all suffering but to reduce it by finding ways that are still practicable, without major economic, pleasure or whatever downside. All vegans kill insects when they walk in the wood but stoping walking altogether would make their life miserable. On the other hand, eating plants and mushroom is quite enjoyable when you get used to it. And it certainly remove a bug part of suffering inflicted. Think Pareto.

I don’t think jainism can be applied without changing your life altogether and removing many thinks you used to.