Whilst I sympathise with your frustration, at least with Intel, I can't help feeling like you might be storing up bigger problems for yourself with this course of action.
I get what you are saying but right now there are no known exploits and with so much patching happening will there ever? These things are always over blown in the media and the reality is very little damage happens to the average user.
It’s servers perhaps that are most at risk.
Also I don’t do much on my Windows, mostly gaming, I run an iMac and boot into it only for certain tasks, so it’s extremely unlikely I will ever have an issue.
Any performance hit, even if small is just not worth updating for to me.
What do you mean "no known exploits"? The authors of the paper have an exploit that reads arbitrary system memory from a browser. And even after the meltdown patches, spectre "fixes" we have seen are only partial mitigation, and still potentially allow reading of passwords and third party cookies. But I guess if you want to wait til it's too late...
