Social science has shown time and time again that people’s beliefs are usually more nuanced than they appear. Supporters of a particular cause or ideology may have core values in common with their group, but when given the opportunity to illustrate their personal preferences in detail, most will use a sliding scale with variations.
For most of us, knowing this is a welcome relief. People are not homogeneous; their beliefs are more varied than they appear. Go into any group and you will find slight variations on the general theme. Christianity in the United States is a prime example. There are over a thousand denominations, but everyone still calls themselves a Christian. Also, within small groups of churches, you will find differences in belief.