Weeds are the flora equivalent of VC-hype-startups. All growth, no substance and no plan B. They pop-up everywhere, with seemingly infinite growth resources and hope you'll despair and do nothing.

Just going around plucking leaves from everything that looks like you won't like it for a few weeks twice a year works wonders.

Basically regulatory capture for your lawn. No need to help along your darlings (in the beginning), just make everyone else play with stupid rules. And once things start going down the drain, it's time for subsidies (fertilizer) and public contracts (pre-germination).