They cannot prove the existence of the unicorns, and thus they cannot define the unicorn's reaction to the shoes being worn. Perhaps the unicorns are fake, perhaps the unicorns do not mind sharing the shoe space with the feet (and are capable of compressing), or maybe the unicorns even prefer to be compressed by feet.
We don't know, so we shouldn't make it a universal moral rule, much less a law.
EDIT:
Besides, it's not like religious people have never committed acts antithetical to their own religion.
I think the pro-landlord commenters are missing the fundamental point:
In the "please pay me to live in my extra house" scenario, the problem is not that someone is renting your extra house. The problem is that you and others can afford to have multiple houses, so much so that the person renting your house cannot buy their first house. If the cost of houses increases as the availability of houses decreases, there is an obvious outcome to the richest people buying all the houses and renting them out.
I wonder how much sunlight we can convert into stored energy until we are non-trivially detracting from the amount of energy that reaches the earth's surface.
It's probably an absurd proportion of solar panel coverage.
Imagine a massive collective of common people that agreed to bombard advertising like this, should the "top grossing queries" list be made publicly available. Giving Google all that money isn't great, but it would probably be a new issue for companies to argue over, and it would be hard to quickly make it illegal with Google sniffing out potential profits.
I know you're probably joking but I recently picked up a 4TB WD Red Plus for $70... the drive isn't perfect but that price blew my mind, great for storing simple media.
It's the exact same shit as people complaining that CRT is "white-blaming."
No, the problem isn't inherently who you are, the problem is what you're complicit in doing.