Beds are a tool for sleeping, candles are a tool for seeing, pots are a tool for cooking, spoons are a tool for eating, books are a tool for learning, needles are a tool for sewing. Are those allowed inside the house?
Yes it does. “Sense” isn’t an objective trait, it’s something an observer creates by observing, All beliefs make sense to the people who believe in them. They don’t have to make sense to everyone, but they do have to make sense to their followers. I’m sure amish people have some answer to what I just said that makes sense to them.
That said, like all homophobes, their reasonings are often shallow and contradictory.