I agree with you 100%. Most political talking points on sites like Reddit (and even HN) are just platitudes. The problem is they've been repeated so often that even questioning something is ground for a public tar and feathering.

We cannot have any sort of meaningful dialog when the opposition on both sides is painted into a caricature.

George W. Bush had an amazing quote during the memorial service for the fallen Dallas PD officers. Paraphrasing but: "We judge other groups by their worst and ourselves by our intentions"