Antitrust laws are designed to keep uncompetitive businesses dropping coin into politician reelection coffers . . .
Will antitrust become a geopolitical matter? | EconLog | Library of Economics and Liberty
. . . not making the markets safe for businesses. The point was always to shackle the thriving business with a better business model, so the old decaying businesses would not be tossed out. Why? What reason could there be to go to great lengths to bind a business like Amazon, in an attempt to save Sears? If Sears fails, so be it, if not, great.
And the hoary argument that the government is doing it for the consumer is absurd. The consumers is getting what he wants, if he weren't he'd be taking his business to another. The only time this is not true is when government creates cartels, or actual monopolies like the taxi cartels, or other government created monopolies or cartels.
Always focus on the best interests of the consumer, the customer, not the business. That way lies real progress.