> every ten seconds someone will start asking to tax everyone to fund Rust Software Foundation or constantly argue that you have to donate a percentage of income to it

I have literally never heard this, in ~decade of working with Rust. I think you may be taking some random mailing list discussions a little too seriously

I've been writing rust for over a decade and I've been quite active in the community at times. I've barely even heard of the rust foundation, let alone seen suggestions to donate.