do not wish to contribute to the furtherence of an ongoing illegal enterprise
Illegal enterprise? Last time I checked, having an enterprise isn't illegal. Leveraging your monopoly is.
How about:
do not wish to contribute to the furtherence of illegal practices by an abusive monopoly
Same thing goes for:
become dependent upon an illegal monopoly
Monopolies aren't illegal. Leveraging said monopoly is.
Change to:
become dependent upon an abusive monopoly