PARASITE DEVOURS HOST: In San Jose, generous pensions for city workers come at expense of nearly all else.

Here in the wealthy heart of Silicon Valley, the roads are pocked with potholes, the libraries are closed three days a week and a slew of city recreation centers have been handed over to nonprofit groups. Taxes have gone up even as city services are in decline, and Mayor Chuck Reed is worried.

The source of Reed’s troubles: gold-plated pensions that guarantee retired city workers as much as 90 percent of their former salaries. Retirement costs are eating up nearly a quarter of the city’s budget, forcing Reed (D) to skimp on everything else.

“This is one of the dichotomies of California: I am cutting services to my low- and moderate-income people . . . to pay really generous benefits for public employees who make a good living and have an even better retirement,” he said in an interview in his office overlooking downtown.

In San Jose and across the nation, state and local officials are increasingly confronting a vision of startling injustice: Poor and middle-class taxpayers — who often have no retirement savings — are paying higher taxes so public employees can retire in relative comfort.

What, you thought public employee unionism was supposed to help the less fortunate?