Isn't that itself very suspicious that they are going all Calvinball and changing the rules which long stood out of the blue? Now they say it is a monopoly is

Isn't that itself very suspicious that they are going all Calvinball and changing the rules which long stood out of the blue? Now they say it is a monopoly is a problem after Walmart managed to become the biggest employer in several states and literally becoming the only option in many areas? Now they cite vague unspecified harms while long ignoring concrete ones and claim the ones with no ability to exclude from the market are too far? That just screams "pretext".