The links you screenshotted from the desktop site appears as just a "How it works" link. You have to click and it loads a new page. It doesn't indicate it explains the profits from the DNA health test.
Scroll farther down the menu.
"Research participation."
It's all over their web site.. an advertised part of their company from the jump.. you opt in with clear language, etc.
I'm sorry but you are being incredibly stubborn to the point of ridiculousness here.
The product they are selling are ancestry tests; of course that's going to be the most prominent thing on their site. They also use the fact you can contribute to research as MARKETING.. let alone how explicit their opting in is.. let alone the fact it's been part of the founding of the company from the start, partly how they sold the idea to investors, etc. There's nothing nefarious here.