Developers make software because they want to, or because they are paid to.

Consumers can use free software because it fits their needs, or they can pay for software if the free options don’t suffice.

Consumer demand for paid software drives paid software development.

You claim to be an open source developer, cool. There are people who are not developers who can’t contribute code but still want software. Sometimes that software needs to be paid because some free options aren’t “there” yet. Yes they could pay or donate to open source developers, but they can also tell a company they want to pay for linux software which is what this thread is about, in a community that isn’t focused on open source software