Unless Google ever uses one of your patents, and you have to sue Google over that.
VP8 and VP9 come with a no-litigation clause that basically requires you to share all your patents with Google if you use VP8 and VP9 – which is a shame.
You only lose the right to use WebM parents if you file litigation against any user of WebM (not just Google) over any implementation of WebM. You can sue Google about anything else and not suffer WebM license consequences.
You're probably thinking of Facebook's open source patent rider. https://github.com/facebook/react/blob/master/PATENTS
And yes, Facebook and Tesla’s patent licenses are completely ridiculous.
Do you have a link to the license which says you must share all your patents with Google?
That’s the usual wording of these clauses, and the problem.