<Snipped quote by Altered Tundra>
I can absolutely tell you that critics can and have been objective when discussing the more technical aspects of a film. Sure, stuff like performances are always subjective (though if there's a bunch of people saying "So and So did a bad job it's a pretty good sign that So and So does a bad job) but a movie's script and action scenes or cinematography or editing are all very easy to be objective about. If a bunch of critics are saying the same thing about a movie, in this case that "Tom Hardy is the best thing about Venom" it's pretty easy to assume that the rest of the movie isn't so good.
Of course, some people might view the movie differently or find things they like about it that make it worth their ticket price. But that doesn't invalidate the critics and their perspectives.
I guess we shall see come the next couple of weeks when I'll be able to see it (hopefully).