Because they were already gaslit by techbros.
Do you even need that many ports on your PC? Maybe one or two is perfectly fine, we can make it thinner if we don’t have to put that many on it, and otherwise here’s this dongle for expanding the base ports. BTW you’ll need backlight in your keyboard, no opt out, it’ll change your life forever, just set a less flashy color scheme if rainbow vomit RGB is too much!
Is that why so many dongles are being sold?
You can be certain they would be using more ports if they had any.