"And of course, without us openly involved, many nons can and have joined any of this exclusively on civil liberties grounds, increasing the manpower behind each cause."

By "openly involved" we need to qualify this as not just accidentally coinciding ( as conflicting theories of society might over "murder is wrong" ) but acting in collusion.

Here an understanding of some agreement that we will shut up in exchange for the benefits conferred by allowing Nons to do our work for us, transforms their actions and words into ours by proxy and allows their condemnification.

We must do what we must, and allow any whose actions benefit us to do what they must for their own reasons.

Dante