I'm not saying hold your breath either
> One factor in the fate of on organizing is that much of the agenda was codified into law.
Right so now that workers don't have much real power, it is nice we have the legal remnants of power in the past. But given what I am saying, this should be seen as a Faustian bargain: it's not worth sacrificing power now (via legalization-ossification), to have some remnant influence later. Moreoever, having complex erodable things enshrined in a law doesn't work well as a "rachet".
The most important thing is to sustain power and sustain politicization --- don't let the red scare take all your best organizers in the 1940s-1950s interested in the real goal of workplace democracy! And if you do go for laws, make them really simple things (40 hour workweek is better than NLRB recognition, but still too complex. Maybe UBI would be the best).