Your assertions about how "liberal minded people" prefer to get information is baseless. There are hundreds of liberal web sites, some of them write whole paragraphs, lots of liberals are academics who read books and everything, and if you think Twitter is just tweets you must not use twitter. The most useful part of twitter and why I use it is that good writers generally link to their latest work with a quick description of what it talks about, so it's sort of a news aggregator. Other than that it's nothing more than mindless fun, but it's impossible to get "news" from 140 characters. And I don't know any liberal who does, and it's also true lots of conservatives are on twitter with equally mindless tweets to their name. Including millions of Trump's followers.
And the reasons for conservative talk radio dominance aren't really relevant to your point. Talk radio is the laziest possible way to get information - a host like Rush Limbaugh spends 3 hours a day giving you biased commentary on exactly what you should think. It requires no effort - just nod your head and agree with the host. Same with the reality TV we call 24 hour news. If there's a segment longer than 3 or 4 minutes, it's a rarity. And TV news requires no thought or effort, especially if it's ideologically slanted like Fox on the right and MSNBC on the left. You're almost certain to hear little to nothing to challenge your predominate world view, so you get to listen, nod your head, never forced to consider alternate opinions and go to sleep validated. I find cable "news" worthless to understanding ANYTHING, frankly, unless it's what someone said on video, or how many got killed in some disaster, and I can read those somewhere if what was said is important.
Finally, newspapers aren't failing because they're liberal, it's because their business model is under attack from the online world where news is provided for free. Anyone younger than about 40 will probably never subscribe to a physical paper - they'll get it online and so much is available free of charge there is little need to pay for a subscription, and online advertising is doesn't pay the bills, especially as so many apps are available to block it entirely or nearly so.
So you made a dumb assertion backed by nothing but that allows you to feign superiority over liberals. Fail all the way around.