I'm not doing advocacy here, I'm giving pointers on how to come to a deeper understanding of what is going on.
It is also important to understand that the EU is directly attacking this doctrine with this proposal. You are free to agree with the EU. Again, I'm just giving something to guide people to a deeper understanding of what is going on beyond the surface level playground politics of it all. There's more going on than that.
(Personally I would say I "disagree" with the Monroe doctrine but the sort of national/international structure I would actually want is not even remotely on the table, so... my opinion is thereby of even less import than a random other opinion drawn from "the masses" for choosing "E, none of the above" when that was not given as an option in the first place.)