To speculate on just one possible strategy:
- First order of business, crush Ad Block plus' pay to play business. Possibly just by entering the market with resources, IP, and channel that would overwhelm them.
- Continue on this path until Google is the leader and standard setter, beating everyone on price
- Start to innovate around adding higher value pay to play features, prioritization, options, etc, until it becomes a business with a decent margin.
- Decide whether to wage all out ware with blockers that don't participate in a revenue share program. The war would be multi-pronged with technical, political, and PR fronts. A large team would work 24/7 to instantly defeat blocker updates in an effort to wear them down. Lobbyists would press hard to legislate and control ad-blocking to "protect" content creators. PR would enlist high profile loved content creators, show how much we love their work, and that now, they are forced to live in a cardboard box due to your ad-blocking.
If 60 Billion in revenue is threatened, how does it play out any nicer than this?