The Immaculate Conception

No one wants to say that Mary is a sinner, right? Nobody's willing to say that. And then even the ones who do want to say she wasn't some sense subject to original sin, do their best to limit the ways in which it's possible. If they don't affirm the Immaculate Conception, it's because they don't have the theological framework or the logical framework to work out any way to talk about it. So yeah, there's differences there, but everyone is coming with that as they're kind of main, at least one of the main driving factors.