The difficulty with blanket dismissals of the article that you entirely agree with based solely on the source is that those views that you entirely agree with are still shared by that group.
So, whether you find it a comfortable place to be or not, there are groups with whom you disagree profoundly who are campaigning for the exact same things as you.
Now, I appreciate that it is everyone's right to operate in this movement as they feel they must. This is a given. But if you don't understand and deal head on with the fact that there are many ostensibly on your side in it that you find objectionable, it will become a fatal weakness. And the next time Owen Jones or whoever comes along with their accusations of you being an alt-right fundamentalist who all decent people should reject, a lot of people are going to buy it.
Now, you can deal by eschewing everyone who you disagree with about other things and only sharing from sources you entirely approve of. It's a tactic, yes. But you will still spend a lot of time explaining why you share some views with people you despise, because it will be brought up.
Or you can say up front, 'Look, I don't agree with everything these people think, by any means, but this particular thing is spot on.'
That meme about two very different people agreeing the sky is blue seems appropriate at this point, but I don't have a copy.