You're right, it's "just my opinion", but that applies to everyone here. There is no science beyond the basic observations of behaviour which can be interpreted in any number of ways.
That said, it doesn't strike me hugely contrarian to say that this entire thing is very hard to prove, if not outright unprovable. I feel people really are jumping the gun here. I suspect morals are kind of getting in the way of clear thinking here. And look, I'm one of those vegan woke bleeding heart libtard types and actually care quite a lot about this sort of thing in general, but I just don't see the evidence of consciousness here, under any meaningful definition, and don't see it being very likely either.