What's the sustainable solution here? Do we give up and let our performance erode back to where it was a decade ago? Do we just let the vulnerabilities pile up

What's the sustainable solution here? Do we give up and let our performance erode back to where it was a decade ago? Do we just let the vulnerabilities pile up until somebody starts exploiting them? Or do we create an entirely new 'premium' CPU architecture that is designed from the ground up around security, and have an underclass of insecure and dangerous devices?