Earlier quoted context omitted.
When one side says it's raining and the other says it's sunny, it's not 'losing the ability to consider multiple sides of an issue' when you look outside and report to the public that one side is lying.
When one side says it's raining and the other says it's sunny, there's no point in censorship, since one side is obviously wrong.
The NY Post story pushes the repeatedly-debunked claim that Biden pushed for the Ukraine prosecutor to be fired in order to protect his son. It has been fact-checked to death and found to be a lie. One side (the Trump campaign) continues to push this lie. The NY Post, owned by Trump henchman Rupert Murdoch, is pushing that lie in the article.
I don't see why Twitter and Facebook have to be neutral on their platforms when it comes to spreading lies in the run-up to a major election. The NY Post is a tabloid and this story has not been verified by any reputable news site. Banning this story is on par with banning a tabloid story that Biden is conspiring with Martians. It's a net good.