Ohh my god, come on, you've been explained this a hundred times by now. It's not that I can't handle it. It's that it's fairer for everyone if the price is set based on the actual cost.
My cabin costs $200 a night to rent, and $100 to clean. If you stay 2 nights that's $500 total, or $250 a night. Do you suggest I just should set the price to $250?
But what then for those renting for 7 nights? Normally they pay $1500. But with your scheme it will be $1750. Or I would have to eat the cleaning cost for those staying 2 days, making no money and instead just pulling it from the market and everyone loses.
The customer doesn't even see the cleaning fee. They see a total price. Then it's up to them to decide if they think it's worth booking or not.
Perhaps this is because I live in Europe, where all costs must be up front. Hence there is no scamming going on here. And I don't care what a cabin on the other side of the world does. I do what makes sense in my local market (people here even bring their own bedding!!). Get it into your head that people want freedom to choose a stay that fits them. If you don't want to care about this, then just don't book.