You signed a contract that spelled out the consequences of backing out of the deal, and when you backed out of the deal, you want to change the terms. I get that misfortune was the cause of you backing out, and I agree that it would have been nice for you, if they had returned your deposit, but the precise reason builders ask for a deposit, is to ensure that people don't go around contracting homes to be built and then back out.
Would you have been willing to change the terms of the contract to cover their losses, if the deal had gone the other way, and they had to sell low, or sit on it vacant for a prolonged period of time? You backing out was not their fault, either. A contract is a contract, and while you may feel personal resentment towards them because they didn't lose any money - you voluntarily signed the contract, and Maronda did nothing wrong by upholding the contract - as written, and not as you wish it was written.
I'm looking for valid reviews of this builder, as I consider entering into a contract with them, myself. It is wrong for you to poison the well, with negative reviews of their business practices, when in fact they are doing exactly the same business practices as every other builder, and realtor in the country. Good faith deposits are NON-Refundable. Period. You back out, you lose it. Sorry, but it is what it is, and Maronda did nothing wrong here.