You don’t have to justify your fascination, but you are most welcome to!
‘Proposed’ includes old and new ideas alike. Consensus isn’t a requirement either - it could be speculative, contentious or entirely uncontroversial, as long as it doesn’t contradict what is currently known.
I’m sympathetic to the MWI as well. It’s currently the only explanation that is both consistent with what we know and doesn’t require any new physics to work.