So what are the chances that enough of us can get on the same page to correct some corporate wrongdoing?

That is why I call regulations boycotts. Congress is where the important boycotts - the ones against child-employers, deceptive adverisers, product adulterators, and anyone else we agree by law not to patronize are organized. But now, in the age of social media, you can ask Anheiser Busch how easy it is to organize a voluntary and punishing boycott by transphobes.

Whether anti-trust laws are "rarely" enforced is a judgment call. Remember Ma Bell? I think you're right that they are not enforced enough, but that doesn't mean someone other than capitalists and entrepreneurs will do a better job of allocating capital and organizing enterprises. The critique needs to take us somewhere; it takes me to better laws and enforcement (more politics), not to a "better system."

As for the physical analogy, I would say that some work and some don't. Blanket statements in support of either approach seem to me unnecessarily reductive.