WiFi and wired ethernet each has their strength and weakness, but there's nothing ridiculous about Nintendo's decision. They reduced cost per unit and kept the device a bit more compact and power efficient. All that, and they alienated very few customers. Most people have WiFi, and it's rather cheap and easy to get set up if you're not. Nintendo did what Apple does: sacrificed utility for aesthetics. Seems to work out fine.
You do not have the right to never be offended.