Same boat. I always send them the primary source when I can. I send them the peer-reviewed science paper not even the science-news summary of it so at least in their mind they have to think "oh he means well he's just reading the wrong study, the science is conflicted". They're smart enough to read the abstract and understand what the paper's main findings are.

I think the only prayer is for them to realize that all their sources are the same source.

Do you have a conservative source for that? Does your source have even a single conservative reporter/journalist working there that you can name? Then reject that source because you need to get the full picture or you only listen to balanced news.

It's not that they're dumb, they just can't conceive of a 150 million person echo chamber or that they're in it - that's a conspiracy theory, an impossibility.