I'm not going to reply to most of that same old be-fast-or-be-punished shoot, but:
4 - pedestrians seem to manage quite well by stopping and looking around - what is wrong with cyclists doing the same ? Is it SO difficult to stop and [heaven forbid] put a foot to the ground ? You are, in effect a pedestrian on wheels.
Cycling is not walking with wheels underneath. A bicycle is a vehicle, which is why planning cycling must be made with the planning principles of vehicle traffic. Simply stopping at the bad crossing design is not enough, as crossing is constrained to where the carriageway and cycle track meet, which usually means you have to wait until you can see it's simultaneously clear from all directions. Even if you don't have to wait, each stop is like another hundred metres on the journey and when you don't move fast, that's even more precious time lost. More cycling is wanted so that we can keep pollution and congestion down and keep our towns and cities moving.
Pedestrians have a slight advantage of priority when crossing side roads (not that some motorists respect it) which cycling doesn't yet. This is sometimes known as the "STraight Ahead as Right" (STAR) rule and is another thing which could be fixed by legislation, like presumed liability.
Nevertheless, pedestrians are also knocked down by cars sweeping around badly-designed T junctions too quickly and failing to give way. The changes that would ease cycling may well benefit pedestrians too.
You have chosen the extra safety [real or imagined] of the shared pedestrian path
No, its users have chosen what should be a more fun/less stress option of a cycle track (which is the proper name). It's difficult to make a general safety case for cycle track or carriageway, but I'd like both to be built without unnecessary dangers. I feel carriageway designs are better at the moment, but I do seek improvements where needed, such as removing those nasty guardrails which cyclists can get crushed into.
There should be footways as well as cycle tracks, but that rarely happens yet.
Cycling is being encouraged by policy (slowly!), so the world
is bending to suit (slowly!), happily. It's high time to avoid new mistakes being built and fixing past mistakes. Explanations of why lethal designs are broken and pointers to the better designs can help with this.