Let’s not resort to simplistic slogans that developers always make lots of money. They have certainly not been making money in recent years, as reflected by their stock prices and the fact that many smaller builders simply went out of business. Yes, they capitalized on our insane appetite for houses during the bubble years (and why shouldn’t they?), and made money then. But over the course of the cycle their profitablity isn’t so great.
What has stayed the same is the costly burden of government. If you haven’t built or put on an addition, you have no idea of the wasteful burden put on builders, which must be passed on to the consumer.
As to the above complaint about Mello-Roos fees, this is to pay for infrastructure such as schools, roads, etc., in effect, a tax the developer merely passes on to the consumer.