How do I know he's a terrible spokesperson? Because we're talking about him and not about free software. It's that simple.
I want the FSF to focus on free software and I want the discourse around the FSF to be about free software. Not RMS.
No it's not that simple. Because the other side of this is that we are talking about Free Software because of him, indluding his personality. Few people would stand up for this thankless job. Few people would have created and promoted the GPL.
We are taling about RMS because some people decided to attack him unfairly. There may be people better suited for the job. But that is a different argument from the one you made.
If some people on HN started talking about AndyMcConachie would that be justification enough for getting you kicked from HN?
Doesn't make him a good person to lead NASA