[mLuby]

Wish you would be more precise about what you're saying. I'll do it for you: (Feel free to quibble about my exact wording.)

global warming: long-term economic interests should trump short-term economic interests.

evolution: science should trump faith.

abortion: pregnant women's rights should trump fetal rights.

refugees fleeing war: generosity/compassion should trump safety, jobs, and taxes.

LGBT rights: general human rights should trump straight cis-male rights.

What I hope you can see is that rather than statements of fact, these political topics are actually ethical questions: what _should_ we do? Any time we're prescribing a best course of action for individuals or groups, there will be differences of opinion. Certain facts related to the arguments may be incontrovertible (humans _are_ changing the climate, evolution _is_ supported by evidence), but that doesn't mean the _should_ part that comes after evidence is also a matter of fact.