YComb was just an example, though. Should companies be able to be bought and sold at all? My opinion is yes. Agree or disagree?
But "corporations are people" and those types of markets have closed since 1865 in the united states.
Why do you present this as a binary to agree/disagree with?
The OP explicitly answers this: go back to pre-80s antitrust policy. Companies can be bought and sold but not if it creates concentrations of economic power that allow them to dictate prices to vendors or customers.