Because of Youtube/Twitter/FB selective showing of content outside of the good faith clause, they should be liable, yes. Keep the law, just enforce it. If you're not going to enforce it, you might as well get rid of it.
They currently enjoy unlimited immunity in a way the spirit of the law does not allow. You can't enjoy tax breaks etc. of being a platform and then go and ban content that you don't agree with, but which is not harmful in the way the law lets you do. I.e. the law lets you remove illegal content, but if you are being treated as a platform, you can't just go and, oh, I don't know, not let the New York Post show a breaking story about Hunter Biden's laptop.
They currently enjoy unlimited immunity in a way the spirit of the law does not allow. You can't enjoy tax breaks etc. of being a platform and then go and ban content that you don't agree with, but which is not harmful in the way the law lets you do. I.e. the law lets you remove illegal content, but if you are being treated as a platform, you can't just go and, oh, I don't know, not let the New York Post show a breaking story about Hunter Biden's laptop.