Your strawmen are inaccurate and tiresome.
Not to mention ineffective.
This is one of those hilarious times where you contradict yourself without noticing and demolish your previous arguments.But everyone all ways goes for full ''think like a Jerk DM'' mode and thinks that if even one thing in one game ever is ''set'', then everything in all games will be ''set'' forever badwrongfun!
Previously, you argued that defining railroading as a particular bad thing is only occuring for the minority.
Now it's everyone.
Hmmmmmm....
That is in no way how timetravel works, and there are no actual theories that say this. Which is tangential, but still funny.But I think of it more like ''time travel theory'' where some things are set, and somethings are not.
In fact, there are entire lists of Paradoxes that come up due to the fact that even the tiniest change has large-scale ramifications going forward, and these changes would cause the future you're coming back from to stop existing. So, ironically, actual timetravel theories have more in common with how people run sandboxes than what you describe here. Hilarious.