I have come across a better phrase than 'litmus test' or 'hot button' to describe key issues which divide the sheep from the goats, the real Christians from the faux Christians (aka 'Liberal Christians') - the phrase Truth Serum.
We have reached a situation when the question of marriage acts as a truth serum.
Since Liberal Christian is nowadays an oxymoron, a contradiction in terms - and since Christian Liberals are merely subversives and Fifth Columnists for the political Left; when a faux Christian is questioned in public about their attitude to marriage, their answer will reveal their status as either a Leftist or a Christian.
A Liberal Christian will never take the risk of being thought to favour marriage, but will always signal their primary allegiance to the Left, in terms which the Left can recognize as coming from 'one of their own'.
(Comments are closed for this post.)