I haven't said all car drivers good, all cyclists bad tho'. But I think you need to revisit your estimates of relative proportions of bad drivers to total drivers c.f. Bad cyclists to total cyclists. For example, cyclists jump reds far more often than drivers do (proportionally speaking).
Motorists are at least sometimes prosecuted. Cyclists hardly ever are for their transgressions. In that scenario, the motorists have a right to point out the inequities.
When cyclists, and the vast majority don't, start obeying the laws of the road, then they can reasonably pass comment on motorists failings (of which there are many). Meanwhile, people in glass houses...