The longstanding policy in this country is that the government (FCC) does not dictate programming content. Comcast and AT&T legally own their cable and satellite networks and if they choose not to put OAN on their systems, it’s no business of the governments. If enough people want to see it, the cable and satellite providers will put it on, or they will lose customers to streaming or other services.
Free enterprise.
The FCC has no control over cable content or operations. None, zip, nada.