Comment by liuliu

GPL is not for you to make money. It is for the end-users to have freedom with their hardware.

If you want to make money, use a proper license.

To expand on this, GPL is not against capitalism neither. Sometimes, end-users' freedom with their hardware is good to make money on (they buy your support, to have confidence they can migrate from one hardware to another, or use their hardware way longer than the original manufacturer can stay in business). But it is also not an automated license to say "give me your money" neither.