Fox was pretty much the only media outlet in the States that gave Trump any time at all, and during the primaries they backed other Republican candidates far more than him. He still managed to win though. What's more, despite nearly overwhelming media opposition (Fox aside), he still retains popularity among his base.
When even the Guardian are largely against Corbyn, perhaps the problem is less the media and more Corbyn himself?
That first paragraph is what I meant by "indirect support" - yes, none of the main networks supported Trump apart from Fox (though a lot of the regional ones do), but they all lapped up his message and repeated it out into the wider audience. Every news bulletin was filled with people talking about Trump promising to build a wall, or Trump putting America first ahead of its allies, or Trump being anti-migrant - often in appalled tones, but talk about it they did.
There is a real contrast between that and how Corbyn is covered - there is still the same appalled tones from the journalists and commentators, but now they are talking about him being an anti-semite, him being weak, him pro-Brexit or him being a Marxist.
None of that is true, yet we are in the situation where rational posters here repeat it over and over again.
