Turning right on red is the one thing I'll defend here. You can only turn right on red after coming to a complete stop, and you have to yield to any traffic (including pedestrian traffic) before you make the turn. Given those restrictions, it's strictly an improvement as far as traffic flow is concerned.
Totally agree with you on exits though, especially left exits. Since moving to Texas I've become a big fan of frontage roads, but not everyplace has the room for that.
I'd be happy if people even stopped at STOP signs - the number of idiots who think the law doesn't apply to them at the STOP signs around our way is stunning. A kid was killed a year or so back because some teenager blew through the intersection without checking.
As for right-on-red, I think (as a Brit) it's awesome, but I don't think I've ever seen a single person come to a complete stop before going right, in the 20 years I've lived here. At best, it's slow-down-while-I-check.
Also, right on red means those drivers are so preoccupied with looking left to see if traffic is clear they never even glance to their right until after they have completed their turn and are accelerating. Non-automobile users beware.
Those are some of the most routinely and carelessly broken of all driving rules, which is really saying something. Being a pedestrian in a large city that allows right on red is scary as shit, I've had more close calls that way than everything else combined. The only thing that comes close is uncontrolled crosswalks across four lanes. Which also should not exist.
Frontage roads are quite useful, but the near-complete lack of cloverleaf ramps in Texas is maddening. You can't just smoothly flow from a freeway to a surface street, which means you're always having to hit traffic signals. 610 at Westheimer in Houston is a perfect example of all that going completely wrong.
Totally agree with you on exits though, especially left exits. Since moving to Texas I've become a big fan of frontage roads, but not everyplace has the room for that.