Youtube terms and conditions (for example) are frequently added and then retroactively enforced. Many channels that have been banned were banned over additional strikes for videos that were made back when the guidelines were accepting of said video.
2. Terms and conditions on many sites are incredibly vague (we anticipate by design) and don't give specific lines drawn between acceptability and not. This comedy video gives a good representation of the issue
https://www.youtube.com/watch?v=RGxbaxviRVw
3. The 1st amendment absolutely protects 'hate speech' on the grounds that all speech falls under the 1st amendment and nobody can actually justify what 'hate speech' is or isn't.
Cancel culture is a perfect example of that -- quotes and comments and criticism and sometimes even asking questions can be deemed 'hateful' by someone somewhere at some point.
4. 'incitement of imminent lawlessness'
I assume that is in regards to Trump. The issue here is that it seems nobody can actually state the specific incitement in question. At no point did Trump say to attack anyone, even imply it and had openly told people not to and to leave the area..
You can believe he somehow implied it despite his words, you can say that someone thought he said it... but he didn't actually *do* or *request* anything..
Twitter itself never argued he committed a crime or made a threat, they argued a vague correlation at best.
5. People attempt to make sites all the time to get away from the above companies.
Liberal companies get their web providers to cut contact, liberal companies remove their apps, liberal companies ban their funding campaigns.. This has been done or attempted with literally every conservative twitter/facebook/youtube alternative thus far --including today with Apple and Amazon both removing parlours app and server
Eventually conservatives will generate their own servers, web hosts, app sites etc etc (apperently quite soon) but the reality here is that this has zero to do with specific speech and everything to do with people speaking.
Liberal sites don't like conservatives having opinions. Terms and conditions are kept vague as an excuse to ban people, then those sites actively attempt to block those very people going elsewhere to continue those opinions.
That is fascist behaviour, not 'terms and conditions'