I'm talking about the ones you see sail through reds when traffic moving through from cross direction. I've seen loads on the few occasions I venture into a big city so can only think it happens every day. A million examples on youtube etc.
That's lovely, but would you mind awfully answering the question instead of avoiding it: are you including advisory "toucan" red lights in that?
I have ridden in big cities, and really, any cyclist to "sail through reds when traffic moving through from cross direction" in London would not last long! I more often see them cautiously move into positions that are technically illegal but known from research to be safer, such as just in front of the stop line. Sailing through is more often done by motorists, when the junction is quiet and they think they can see if any other motorist will conflict, but "failed amber gamblers" and "crossing creepers" are far more common types of red light jumper.
Of course, at many junctions in Paris and other French cities, it's legal for cyclists to turn right (or continue forwards if no right turn) through many red lights, but even then, most proceed with caution and give way when needed, not "sail through". It's not yet legal in England (except for at toucans) mainly because no government has yet gotten sufficiently serious about enabling active travel.
Pavements riding - think we all know what this means. On a pavement designed for and used soley by pedestrians. Again see it mainly in busy cities.
Again, that's lovely, but not an answer: are you including roadside foot/cycleways (which may well be "designed for and used soley[sic] by pedestrians" - also known as a Cycleway Resembling A Pavement) but are technically lawful to cycle upon?
And as an extra, are you aware of the so-called Boateng Advice?
Yes I've cycled to some degree all my life but overall I've driven way way more miles than cycled as I suspect have 99.9%.
So your "been driving longer than cycling by far" was a bit misleading. But that's just a function of cars covering miles more than three times as fast in rural areas. Due to several interrail trips, international sleeper trains and some foreign end-to-end train rides, I could probably say I've travelled by train more miles than I've driven, but I've spent way more time driving. And I've spent more time cycling than driving, as I suspect many have here.
Think some getting wrong idea here. I'm a strong advocate for cycling safety. As I've said, I record my rides and report to Operation Snap any incidents.
However, I am not blind to what some, definitely not all cyclists do. And it is this which unfortunately in the eyes of some motorists tars us all with the same brush.
Rather, it sounds like you have the wrong idea: if you are promoting the idea that motorists tar us all with the same brush and that that isn't something to be challenged and debunked (because almost nobody tars all drivers with the same brush, satire and sarcasm excepted), then you are absolutely not acting like a strong advocate for cycling safety and should reconsider your positions.
We can no more get all cyclists to obey all cycling laws (including the ones which make cycling more dangerous) than the AA or RAC or even the DVSA and Police can get all motorists to drive legally. 100% compliance only for cycling is not a reasonable standard to set and must be rejected and rebutted every time.