https://www.techdirt.com/articles/20210210/11282346225/is-section-230-just-start-ups-history-says-nope.shtml

One of the arguments for changing Section 230 is that even if we needed it a long time ago when the Internet was new, now that the Internet has been around for a while and some of the companies providing Internet services are quite big, we don't need it anymore. This view is simply untrue: Internet service providers of every size still need it, including and perhaps even especially the big ones because they are the ones handling the greatest volume of user expression.

Furthermore, Section 230 was never specifically aimed at start-ups. Indeed, from the outset it was intended to address the legal problems faced by an established incumbent.