Every tech company could not exist without the internet, developed by the US government/universities and released for free. Should they all be nationalized? Are they all "raping public resources"?

Open-source developers have plenty of ways to make money from their work. You can even stipulate in your license that companies who use the code to make more than a certain amount of money pay a fee. If developers choose not to do that, that's fine, but it means nobody is obligated to pay them.

Imagine Warp donated $1000 to Alacritty. Would you be happy then? What about $10k, or $1 million? What would be the appropriate compensation? Sure, Warp wouldn't exist without Alacritty, but they also wouldn't exist without the ARPANET. At the same time, Alacritty's developers didn't raise $50 million in funding, pay developers to build Warp's features, or do any of the marketing. How do we know how to compensate them? Answer: we look at Alacritty's licensing terms, which explicitly permit free use of the software as long the license is included in all copies (which the Warp devs have complied with).