I agree there. We seem to be recovering from a cycle of not caring about monopolies at all, and corporations are now as strong as they were in the late 19th century. I am not surprised that anti-trust is slow and unpredictable today. I hope that we settle into a more predictable regime, no matter which political party is in power.

For historical references, anti-trust filings began against Standard Oil in 1906, and it was broken up in 1911. [0]

The AT&T breakup took four years, from 1978 to 1982. [1]

[0] https://en.wikipedia.org/wiki/Standard_Oil

[1] https://en.wikipedia.org/wiki/United_States_v._AT%26T