The more senior someone gets, the more expensive. It's worth the company's time to screen for basic aptitude, especially when someone claims greater expertise.

> As a consequence, I rather start my own company

By all means, you should definitely do that and stop worrying about job interviews!

> if you employed me with a bit of a good will on your part

Good will is something you earn. And you earn it by doing things the company needs without complaining. For starters, they need to be able to compare candidates against each other when hiring. Fighting that, and asking the company to evaluate something you've done that doesn't allow comparing you against other people, isn't something that will benefit the company.

> or by simply reading my CV and clicking on the links there.

You're expecting people to spend time reading your projects before they screen you? If you got the call, it's probably because someone read your CV. That's all you can expect at this stage. If you want them to click the links and read the rest, then you take 30 minutes to do the phone screen, and another 30 to do the coding quiz. Then you get to have a conversation about your projects.

If they never ask you about your projects, then yeah, maybe you shouldn't work there. The coding quiz is only one small part of a many-part process.