IE's monopoly was broken by Google spending billions of dollars on chrome and advertising it. Where is such spender who would do it for the open web? It doesn't exist. The only hope is regulatory/legislative action, but taking away freedom and relative anonymity online is now pretty well aligned with the interests of the western ruling elites(not to mention some degree of regulatory capture), so the incentive structure just isn't there. Open web will continue to exist for some time, but eventually will be limited to several websites with an activist position. (Unless there is a subsequent legislative mandate to enforce this attestation for everything, for safety and security of course)