It’s a slapped-together kernel with slapped-together software for tinkering nerds who hopefully can get the necessities and everything they care about actually working.

Try OpenBSD, it's very clean.

And for people who want more-specific software, well, eff them, right?

They are already effed, the only thing which will possibly allow them to escape Microsoft's grip is Microsoft's goodwill. They can wait for that if they wish so.

If you want to solve the Linux problems, first thing you need is to go against the common Linux mentality.

I see much more problems with Windows and you seem a Windows user who can't switch due to something, which means you too realize the need, and still with Windows culture which created such a situation you are giving advice?

Some self-awareness, please.

Get a big, well-organized group like Mozilla to produce an accessibility-ready, normie-ready, mainstream, FOSS version of Linux.

There are a few. OpenSUSE, Fedora, Mint.

If you've tried Arch first due to thinking that you are very smart - that's your own mistake (that aside, Arch is fine too).

And then they pay the devs to do things they don’t want to do, such as focusing on specific issues instead of doing whatever they feel like at the time, and on QA-testing.

That's how it already works for many years.

Hardware compatibility and hardware efficiency first.

Drivers are normally supplied by hardware vendors. If they don't make drivers for Linux, it takes work which may not be worth it, and the person who bought crappy hardware is at fault more than Linux developers.