Well firstly the bove market structure post acquisition denotes "Monopolistic competition" where oje firm controls major market share and other firms control smaller pie of market with similar products but differentiation in quality.

Sijce the acquisition aims to dethrottle the market by creating monopolization of 80%market share it can breach US Anti Trust laws of Sherman Act where attempt to monopolize market is illegal since the merger shall create significant market power of above 75% and hence the deal stands to get rejected for merger or acquisition.
The only arguments the company can fight for is to reduce market share before merger and attempt to comply within limits of sector to get an approval of acquisition with an attempt to stabilise the market and reduce prices and increase social welfare for consumers.
Suppose you are hired to advise the Adamantium Corporation of Alabama (ACA) on a potential legal...