I don't think many people actually HAVE opinions these days, most "opinions" are just reflections of current media fashion, we seem to have lost the knack of thinking for ourselves.

If you do wish to advance your opinion, you should at least be able to back it with some factual evidence.

Faith is not an opinion.
There is little evidence to support the view that, "equality, democracy, freedom" as actually practiced in our society, have a positive effect.