Re: Romulus in Prime timeline [spoilers]
Trek has used both "our timeline was changed" and "we created a new timeline" versions of time travel.
When? every episode I rmember had the crew worrying that the future in there universe has bee ncanged because of time travel...The writers may have threw a bone in there interviews but there writing onscreen differs and that is the only canon.
If Fidelity to freedom and democracy is the code of our civic religion then surely the code of our humanity is faithful service to that unwritten commandment that says we shall give our children better than we ourselves received