You're asking everyone who watched the capitol riots to ignore what they saw with their own eyes.
I think taking quotes out of context does not present things as they actually happened or provide a fair analysis. We have to be careful of cherry-picking.
Here's the full context: “fight like hell, and if you don’t fight like hell, you’re not going to have a country anymore.” ... “We will not be intimidated into accepting the hoaxes and the lies that we’ve been forced to believe over the past several weeks.”
Per legal scholars, like Jonathan Turley,[1], "those words could be equally consistent with calling for a protest, not violence, as many groups routinely do at state and federal capitals." which explains why the legal system has not been able to convict Trump.
People seem to have varying opinions on this topic, but at the end of the day if you look at the facts, it becomes much simpler to understand.
[1] https://jonathanturley.org/2021/02/11/reckless-rhetoric-is-a...
Also, consider that Democrats frequently use the same rhetoric when they are talking to their own audiences as well. The Trump defense team showed a 9 minute clip of Democrats using the word "fight" in the recent impeachment proceedings (https://www.yahoo.com/news/trump-impeachment-defense-team-sh...).
So to summarize, Trump delivers a speech, he explicitly calls for a peaceful protest (visible in transcripts), and a very very small number of people break the law. That doesn't sound like incitement - it sounds to me like a few individuals made bad decisions and hold personal responsibility for their own actions and should be held accountable. But no court has found Trump guilty of incitement, and I bet none ever will - the evidence is simply not there.
As for Twitter - their power and influence is larger than most governments, and they should not be making unilateral decisions judging incitement and instituting bans of public figures. They operate the new public town square - and they need to be regulated like a public entity. or just nationalized like a utility and required to uphold the first amendment. And other leaders like Macron (https://www.axios.com/macron-social-media-bans-trump-twitter...) and Merkel (https://www.cnbc.com/2021/01/11/germanys-merkel-hits-out-at-...) are absolutely correct to be alarmed at the reckless actions and immense power of American tech giants, who are ideologically very biased.