Unfortunately this is a side effect of having less competition. Perhaps the time is ripe to into ARM cpus, this is easy for
Linux users but Windows users need to wait for their favorite apps to be ported. Of course if you are privacy concerned you wouldn't be running Windows in the first place, especially 10 which is a giant data-mining platform...
There IS an
open source hardware cpu, but adoption seems crawling slow at best. That would be the ultimate best choice.
AMD seems to have another kind of backdoor as well, so don't think you'll be any better with them. But then there is also the
Meltdown & Spectre vulnerabilities...
While they don't truly turn it off, at least the aforementioned
mitigations should reduce a little the risks, provided there are no nasty secondary effects... Unfortunately this is not an easy thing and you might brick your motherboard in the process...