I am reading a translation, so I might be off base, but not being a monopoly is not a defense. EU competition regulations are not like American antitrust laws.

I am reading a translation, so I might be off base, but not being a monopoly is not a defense. EU competition regulations are not like American antitrust laws. They do not care about monopoly, and consumer harm is mostly a second-order effect. They care about competition, and punish anticompetitive behaviour and abuse of a dominant market position. "It’s not a monopoly" and "there are alternatives" are true, but that’s not all that relevant.