But you're not against hard forks, are you? In a similar thread, you claim that a few blocksize bumps might happen, even with Segregated Witness. No? Those are hard forks.
Not against hard forks that have consensus. A 75% increase threshold is contentious hard fork which I do not support at all (regardless of who wants it; if Core put such a threshold I'd be against it).
Perhaps.
Or perhaps the blocksize limit being in protocol layer (when it was supposed to be a temporary spam measure) is an anomaly.
Only if you believe in the fairy tales of charlatans and their magic fee market papers. If there was no limit, there would be no Bitcoin as we know it today.