In the U.S. speed limits are high enough where stopping within 2 seconds (including reaction time) would require slamming on the breaks.
Also yellow lights should not be a static time. See https://m.youtube.com/watch?v=kyFLRXSxgPw
I think we're mostly in agreement about a lot of this stuff. A lot of drivers here don't drive defensively, and that is a problem. Clearly it's a problem everywhere and it's much more reasonable for drivers to expect red light runs especially on fresh reds than to expect every driver to never run a red light ever, especially at high speeds when checking to see if someone is going to run the very much non-fresh red on the conflicting direction.
My main point is that "red light running" is purely a distinction based on the state of the LEDs. It's dishonest to make a meaningful distinction between someone entering an intersection on a yellow vs a very fresh red. Especially compared to someone on their phone who blows into a full intersection of cars on a non-fresh red which is what's actually dangerous (because of the people there with right of way).
I live in Phoenix which is apparently the red light running Capitol of the country. It's gotten a lot better now that Phoenix and other cities have extended their yellow light timings and red only periods. As it turns out not all red light runs are equal.