If Trump is going to go the cable route then it’d be easier, quicker, and cheaper to get is financial backers to buy an existing outlet - OANN or Newsmax. If Trump wants a start up then get the backing for a streaming service. Like D’Souza said he has tens of millions of supporters who would be likely to subscribe.
Lachlan Murdoch ran a hedge fund into the ground, losing 90% of investor capital. He is about to do the same to Fox News and News Corp. Trump will crush this inferior copy of Rupert.
Trump has acquired an understanding of the media as a business and as a political apparatus. He’d be a savvy and audience-attracting figurehead for a new network.
Also he’d be doing the country a service since the mainstream media is widely recognized to be part of the deep state.