I think it's more the "anti-fact" wing of the media (which does mostly overlap "conservative" on the Venn diagram). Unabashed alt-right agitprop outlets like Breitbart news, for instance, or climate change deniers.
There are a couple different things at play.
First, one plank in their infowar strategy is to combat anything that even indirectly propagates any understanding of climate change among the proles. They take positions even against more-efficient-than-incandescent light bulbs, so this line of attack certainly includes targeting electric cars and solar. Musk is obviously a celebrity of sorts in these areas. Any government help to build solar plants or subsidize non-fossil-fuel alternatives (e.g. electric vehicles) is portrayed as deeply corrupt, a betrayal of American values and working families, etc. Ergo, Musk is bad.
Two, Elon Musk and John McCain have a strong association. Musk has supported McCain and in turn McCain has supported Musk and his business ventures. This is the kind of invest-in-politicians-who-can-help-you relationship that is pretty much a fundamental building block of how the American government works, but it always looks bad to somebody inclined to see it that way. (It's probably also objectively bad that this is how the system works, but anyway it is.) So I think a lot of conservative media that doesn't like McCain (because he is too "establishment" or whatever the reason) have repeatedly brought Musk into it, implying corruption on the part of McCain to help Musk use Russian rocket engines at SpaceX, for example. McCain is bad, ergo his sleazy buddy Musk is also bad.
On your first point, I don't think most (fiscal, small-gov't) conservatives would have much problem with tax incentive for electric vehicles, or anything that generally reduces taxpayer burden. But they are typically vocally against subsidies and grants that favor particular individuals or companies over others -- which is not only unfair, but also adds to more spending. It does little, but to help justify a bigger gov't.
Secondly, SpaceX have been spending millions in political lobbying and McCain's political campaign is among many who benefited from such largess (and his own McCain institute) from Musk. Most Americans don't see this kind of lobbying activities with millions dollars spent on politicians as a "fundamental building block" of a well-functioning gov't, but a corrosive force that serves interests of a few at the expense of the majority, however well-meaning in the eyes of Musk supporters. I personally don't see any problem with organizing an interest group to better represent their views -- or lobbyists -- but when it involves so much money and the final outcome ends in lopsided legislation favoring one particular individual or company over others, it's probably a good time to question their "invest-in-politicians-who-can-help-you" relationship.
Ideologically, McCain's views are aligned with those of the "neoconservative" wing of the republican party -- he's mostly known for aggressive foreign policies, American democracy everywhere, and subsequently pro-Military Industry Complex (MIC) which inevitably all leads to a bigger gov't. While most conservatives are also for strong national defense, not everyone is necessarily on board with permanent warfare and welfare (and police) state and that's why "other" conservatives are so annoyed with McCain.
So, once you put these together, it's not too difficult to see why the holy alliance between Must and McCain is criticized by those on the right. They are not necessarily grounded on "anti-facts" or alt-right views as you mischaracterized here. It's just too bad that your pathetic, uninformed comment had to start with the poisoning the well logical fallacy.
I personally mostly don't agree with conservative media either, and I even mostly agree with you here, but to be fair the left also has their anti-fact narratives & outlets, and wrongthink, just the same as the right--just on different issues.
I completely agree with you, and didn't mean to imply otherwise.
Although I do think there tends to be a broader overlap on the "conservative" side, for reasons for that are complicated and don't necessarily have a lot to do with being conservative, the "liberal" side does indeed have its vaccine deniers, MSG paranoiacs, and so on. (However, they don't have TV networks dedicated to these things, available in every hotel and airport in the country...)
I try to judge media organizations (and people) based on their commitment to truth and openness to empirical evidence and new information. Their political leanings may be interesting, but are a (much) less significant data point.
That used to be the tendency, yes, but according to Jonathan Haidt at https://heterodoxacademy.org, "the left" has caught up to "the right"/conservatives in the number of scientific topics they deny outright, and it has happened in the last 5 years.
So very recently, and unless you've been to college in those years, you won't be aware of it.
I forget where he said it, or I would link to it. It might have been in a recent conversation he had with Jordan Peterson.
