NHTSA Complaint #11467062 — 2018 FORD FUSION

Bought 2018 fusion used with 20k miles. Driving to work the check engine light came on. Took it to auto zone they ran codes and said misfire cylinder 3. Replace plugs and coil packs. Next day check engine light came on again. This time had rough idle at start up. Turned car off and contacted closest ford dealer. Upon inspection told me coolant leaking into head with no blown head gasket. Said to be common problem with ecoboost engines. Need to replace engine for over $7800. Not under warranty and Ford knows of issue and won't stand behind their product. I'm a single mom with no car to get to work now and no way to fix this. It would take me years to save enough to fix this car. Completely hopeless at this point. No car=no way to work. No job=no home or food. This is a common problem and well known issue but tough luck? How can this be right? How can I feed my children or pay rent? What am I supposed to do? This is not fair. You made a faulty product so you should stand behind it and make it right. This has literally destroyed my life.