I have bad news.
Section 230 modification is reasonably well-liked on both sides of the aisle for different reasons.
On the right, because they think it is used as a shield against accusations of suppression of right-wing voices.
On the left, because they think it is used as a shield against suppressing hate speech.
The only reason some elements of the left, and I use that term loosely to be clear, are even remotely against it is because it's Trump saying it right now. Once Biden starts saying it, then that opposition also falls away.