Responsible would mean holding to the 7 principles.
A free and IRRESPONSIBLE search for truth and meaning would be searching for truth in meaning that, say, denied inherent worth and dignity of every person;
The 7 are a set. You can’t pick and choose.
One is solely Unitarian Universalist Christian. It’s more conservative and “feels like” a Methodist, Congregationalist, maybe a more liberal Presyterian or liberal Baptist at a stretch — but in that basic family.The other, which I liked, is the come one ,come all (so long as you aren’t an asshole). The only thing that was a bit boring is the talks and meetings were LONG, wordy and very political.
It’s an ongoing experiment. Law continually changes and is not fixed.