> light rail in Austin is a complete failure

Light rail is stupid. It’s a bus that can’t change lanes. A train that gets stuck in traffic.

And, as you said, they visibly disrupt drivers which generates class animosity.

I think you’re thinking of streetcars—trains that share right of way with cars. Light rail often has its own right-of-way with priority over cars. (That’s what the crossing guards are for.)

> Light rail often has its own right-of-way with priority over cars

It’s still at grade. Priority is meaningless if there is a car in the way when the guards come down. And those guards, in interrupting traffic, are annoying to drivers. (I’d also point out that the line between trams, street cars and light rail is ambiguous. It’s an American term describing principally European infrastructure.)

> Priority is meaningless if there is a car in the way when the guards come down.

This possibility is so far outside my experience I can only think your perspective has more to do with emotion than logic. Maybe it happens more often in your city than mine.