What do you mean bother none of them would bother a plant cant understand the question i have live plants, all my platys guppys and endlers do are hide in them so not quite sure on your question?
Years ago when I tried the live plant thing I has some Cabomba in my tank and the guppies would tear it apart and there would be plant material all over the tank. It was not the lights as the plants were in there well before the guppies with other fish (tetras) and all was fine but when the guppies were placed in there all hell broke loose and my plants ended up in the garbage. So that is whay I ask about livebearers that will not bother plants. Maybe it was just my bad luck.
Mollies need algea and plant matter in their diet, or they will have severe issues. I would go with platy's. I have never had my mllies eat my Amazon Sword plant.