Whether or not someone smokes has no bearing on how they interact with others. Expecting them to be “lowlifes” because of it says more about you than it ever could about them. And nobody’s ever going to be in a situation of “It’s either you quit this vape or you let your friend die right now”. 🤦🏻♀️
You just described such a scenario. Your friends presumably know that you’re trying to quit and they continue to partake even whilst you guys are hanging out. In this case, they could choose to be good friends and support you in your journey toward quitting by refraining from vaping when they’re around you. But, instead, they’re a slave to their addictions and cannot abstain from them for long enough to support you as their friend.