Cars turning left on green (but no arrow) often won't notice crossing pedestrians they're supposed to yield to either. They may stop, but now they're blocking oncoming traffic (often hazardous), so they're likely to try and clear the intersection if they feel there's enough room. Of course, they're probably also blocking the visibility of the person tailgaiting them, who will also go through the intersection as a result, enough room or not.
All that turning traffic accounts for 3 of the directions you have to check with a valid walk signal (everything but orthogonal traffic coming from the opposite side of the road) - the 4th comes from people running the tail end of red lights, which happens pretty frequently too. Even ignoring illegally short yellow light timings, people will try to squeeze in. Vroom vroom.
Legal right on red is contributing to the behavior of the car driving east and turning south (who hasn't noticed they now have a green light), as well as the the car driving north and turning east (who's LOS is blocked by a truck, SUV, small van with tinted windows, etc. and is pushing that far up so they can see left enough to spot a gap which they can use to turn right on red)
Every red light in this situation has a get-out clause, and no green light can be trusted.
Note that cars must stop before turning right on a red, so it’s not a total free-for-all. The stopping forces them to yield to pedestrians most of the time.
It's not uncommon to have stop lines farther back from the crosswalks for middle lanes to help improve visibility for the right lane - but even the ones that aren't worn down are often ignored by inattentive drivers. You're supposed to fully stop before the crosswalk even when turning right, but many drivers turning right don't fully stop at all - and are at best planning to stop with the crosswalk blocked. You're not supposed to speed up when you see a yellow light. All these things are ticketable offenses, in theory.
Between lax enforcement, lax punishments, lax driver education, and driving while texting, sleepy, high, or just plain drunk... well, I usually don't encounter problems from all 4 directions when crossing a street, but 1 or 2 is pretty common. I feel decently safe crossing, but only because I keep my head on a paranoid swivel. Occasionally I have to kinda hang out in the middle of the crosswalk for a few seconds while I wait for some idiots who failed to yield, and I'll throw up my hands in pantomimed exasperation...
A lot of times it is just easier to cross in the middle of a block because you have a much better buffer area where random cars can't pop out from. Obviously it depends on the particular road. If it is some 6 lane wide main thoroughfare, I'd probably opt for the cross walk.
Well that’s just bonkers.
Where I live when a pedestrian wants to cross the lights stop all cars for the duration.