The repercussions for inciting violence/hatred and engaging in discriminatory practices should be punitive measures.
You argue that the discriminatory business will fail, however that's not always the case. That's the problem with this free market place of ideas, it assumes that the BEST ideas will always come out on top which is fundamentally untrue and naive to anybody that has studied history.
This is why I believe there should be a more authoritarian stance regarding the defence of some civil liberties.
The Weimar era in pre-nazi Germany was the most progressive and liberal society of its day. It welcomed the free market place of ideas WHOLELY and even entrenched the ideas of proportional representation to ensure that all ideologies were represented within the reichstag. You know what happened to this bastion of free speech and liberalism? Well as a result of the Great Depression people were driven to vote for the Nazis within the "free market place of ideas".
The assumption that the truth will always win in a completely open society of free speech is wrong.
Sorry my g but we disagree here. The Powers that be wanted what they wanted and got it. That had nothing to do with free speech. They control the outcomes to all things. Plus Weimar Era may have been progressive and liberal but it was Germany was broke and suffering a meltdown.