This actively harmful view of how computer security works needs to be swiftly punished.
They're the ones telling you to upgrade.
They never said how they would offer you support.
Edit: Also, I'm not entirely sure there are any support contracts for Windows by itself, I think you need to buy a contract from Microsoft for something like that.
Did they not say they'd offer "security fixes", and not "complete UI changes, deprecation of perfectly working runtimes, shoving of new runtimes". The former is support; the latter, is finalization of misleading marketing.
In effect, you're agreeing with RMS. (I'm thankful I don't use Windows, precisely for this reason that Microsoft may do whatever they want with my hardware and my data, and without even playing fair to get my consent.)