Should every movement be painted with the same brush as the worst people in the movement?

Conversely, should every movement be painted with the brush of their best people?

This is a bit... difficult to take seriously. They are being painted by the general actions at large that they are causing. If you want them to be seen in their best light, try to get their best light into the spotlight.

Frankly I don’t think that the problem is that individuals who are part of the pro life movement are lumped in with the worst in the group. Rather, many who hold even less extreme pro life positions are still across the line of what others deem acceptable.

If they don't strongly disavow the worst people in the movement, yes.

I'm painting the group with the same brush as their best, those that "merely" want to shame people for seeking abortions.