This is of course not including the yearly Unity subscription, where Unity Pro costs $2,040 per seat (although they may have Enterprise pricing)
Absolutely ridiculous. Many Unity devs are saying they're switching engines on social media.
People wrote their own game engines since the earliest of games
Lazy gets, using someone else's programming language. They should have developed their own language and written the compiler before starting to write a games engine for the game they wanted to make.