I think there are only two motivators for people who want to ban e cigs.
1) They're stupid, gullible, ignorant etc... Clear and simple. They have no idea what they're talking about and their opinion should be filed under "duuuurrr" the moment it leaves their mouths.
2) They're evil and greedy. Their motivation for trying to ban e cigs is to protect corporations whose profits could be harmed by a growing e cig industry. Politicians want to ban e-cigs because they're trying to protect
tobacco companies that sell death sticks that kill 500,000 Americans every year, as well as pharmaceutical companies that sell nicotine cessation products and prescriptions that are amazingly expensive.
Pretty evil stuff.
Any stated purpose for banning e-cigs can be demonstrated as absurd, because the people who are trying to get them banned are certainly not trying to get cigarettes banned. The very logic they use to say e cigs are dangerous because kids might get them, could be applied to cigarettes.
I bet there are a lot of people that have a vested interest in both the tobacco industry and the nicotine cessation industry, they're profiting from getting people addicted to cigarettes, and then turn around and get profit from people who are trying to quit smoking cigarettes.