People are doing the "yada yada not entitled to a platform" thing, but the distinction between free speech and having a platform is meaningless in reality. It's like saying "you can say anything you want, but we won't let you use the atmosphere to propagate the sound waves".
We now live in a society where it is acceptable for private companies to essentially completely ban individuals from exercising their free speech on the internet. The canary in the coalmine was The Daily Stormer; all the content there would be considered very objectionable and completely without merit by any remotely sensible person, so few people complained about it being shut down. Then came Gab and such. Now it's 8chan, which last time I checked still had more posts about video games and anime than about politics.
Make no mistake, sites you use will be next. /r/the_donald is already quarantined. Youtube and Twitter have gotten much more aggressive with their moderation too.
We need to allow people on the edges of the spectrum to say what they want even if it is without merit. Extreme speech is what prevents normal speech from being censored.
More than anything we can not allow random internet companies to be de-facto lawmakers and speech police by controlling who is allowed to say things on the internet.