Or, to be more pointed: Orthodox Jews saying other Jews aren't Jewish, other rabbis aren't rabbis, other sects are wrong, etc., isn't pluralism. It's prejudice wrapped in a halachic fig leaf. Your beliefs don't require saying these things. Indeed, they're decried as lashon hara.
I feel like this is a good time to reiterate this: if your Judaism asks you to erase the identity of other Jews' Judaism, then you need to reflect on who is actually asking for that. Because it is not Hashem.
@RutiRegan
's Torah is also most definitely Torah.
@stowZJE
I see "wrong" a bit differently? I think that it's ok to think that someone else or another movement is wrong about something. I don't think that's the same as disrespect. We disagree about consequential things and I think it's ok to say so.
@RutiRegan
Good point. I'm looking at "wrong" as less than, subject to some negative fate, etc. The way Christians look at Jews as stunted, needing Jesus, or similar. Maybe I didn't clarify it well enough?