Because police can't physically be in every intersection at once, and there's research that shows that removing parking around intersections reduces pedestrian fatalities. They could add cameras, but I bet you that people would fight tooth and nail against that as well... not being able to park within 20ft of an intersection doesn't cause any privacy issues, or funnel money into the city councilman's cousin's company that just so happens to be in the business of installing red light and stop sign photo enforcement cameras, or need ongoing maintenance to keep working

You must not be a pedestrian if you don’t like the red zones at intersections. You can’t see the oncoming traffic without stepping into the intersection.

> Could raise a fortune for public transit if we enforced traffic laws and used that money.

If you consistently enforce the law then the fine revenue falls below even its current level because consistent enforcement reduces violations, meanwhile costs go up because the additional enforcement has to be paid for.

The existing system is the one cultivated to maximize revenue by setting speed limits below the median traffic speed so that cops can "efficiently" issue citations one after another as long as there isn't enough enforcement to induce widespread compliance. This is, of course, dumb, but the alternatives generate less net profit for the government.

> we're getting rid of parking spots within 20ft of intersections

This is called daylighting, and it’s a very good idea. The rest of your comment was just snark, and I assume you know that road improvements don’t have anything to do with law enforcement, but I just want to emphasize that daylighting is going to be a huge positive for the city.

SF put in 33 speed cameras in known locations, and are aiming to install 900 more by the end of this year. As a bonus to speeders, speeds in excess of 100 mph will incur a $500 speeding ticket, though that may have unintended consequences.

First off, false equivalence - there is no "instead of", what the police do or do not is unrelated to the reduction of parking spaces.

Second, implementing safety by modifying the physical environment is vastly superior to anything else because it scales. There's no longer a need to educate every single person who will use every intersection in the city every day on how to do it safely, nor a need to ensure x police officers are present. The physical design creates an environment that is safe by default.

There’s a cost of policing, and a significant amount of ticket revenue goes to court fees. Not everyone pays their ticket.

Likely it’d not raise a fortune and the ticketing revenue would mostly offset the cost of enforcement.