They have a right to an opinion, but that does not necessarily mean that their opinion is valid. From Wikipedia on Validity: "an argument is valid if and only if its conclusion is logically entailed by its premises."
Personally I worry about how long this takes to resolve; if it takes too long, there might be enough social value drift no one will be upset by this sort of thing anymore. And that will be a much harder to fix starting point. Well, I would consider it a state worth fixing, at least.
This statement's conclusion does follow from its premise and it's a valid argument, but not a proof.