> they intended I solve using URL re-writes (so all result clicks run through Google rather than direct to the desired site).

Interesting, well we know how that ended with google AMP. It's good that we have people that think like you. Sadly there's always someone else willing to just take the money and implement it. I'm grateful for the community and the hobbyists that build workarounds and alternatives (e.g. searxng), and I contribute where I can. I think that's the only real solution at the moment.