Free speech works both ways. If you have the right to say whatever you want, people and business who create social environments have a right to their own free speech which means they can remove whatever they want from their platforms. It's just that simple.
If someone went to a bar and started yelling about white supremacy and overthrowing the government, they would get kicked out for sure and no one would question it but for some reason there are a bunch of morons out there who think that the same isn't true for other businesses like facebook. It's such a stupid argument I can't help but roll my eyes. OP, you and those who think like you need to stop being dumb and selfish and realize you don't have the right to control what other businesses say on their own platform just because they're social media businesses, just like no one can control what you say. This is just a stupid argument that hinges on believing your voice should count more than others, and confusing free speech with believing that means there are no repercussions. It's not far from arguing that you should be able to yell bomb on a plane (when there is no bomb) without getting in trouble for it, or accuse someone of a crime they didn't commit.
And the whole section 230 argument from the right is a great example of how stupid they're argument is. If section 230 were repealed, platforms like facebook and twitter would be liable for all the dumb and incorrect things people like Trump say online and he would get banned immeadiately since businesses would have no choice but to purge liabilities from their platforms. They don't even understand what they're arguing about.