In that case lets apply your principal evenly to all rights.
Freedom of movement: heading somewhere we don’t agree with, ok but you aren’t allowed to use public roads since we own those. Good luck getting to the voting station.
Freedom of assembly: we don’t support your protests cause, stay off public property, go hold your protest at your own house.
Freedom of conscience: fine think whatever you want but if you attempt to record it in any way we’ll block you.
A right without the means to act on it is nothing at all. You’re arguing for a society built like a prison. You should be ashamed.
YouTube, as well as other major Internet companies, have a near-monopoly over their sectors which leaves them lacking any competitive drive to be better, do better, or for people to go elsewhere.
Without realistic alternatives it is spontaneous (even if erroneous) to think about the implication of private infrastructure over public rights. But the real matter is an issue of scale.
I am convinced that sooner or later governments will wake up and that the tech giants will be broken up or severely limited: the European GDPR and the Chinese crackdown on the sector are only the first signs.
This is a slippery slope fallacy. Just because you can see a flaw with a system does not mean there is a flaw.
Sometimes the flaw is with you & or your line of thought.
In this case, equating "not being allowed to post far-right propaganda on every concourse of communication" is not the same as being harassed at your own home because people are allowed to protest.