It sounds like you have never looked at an ACA silver plan, which is the lower deductible/out of pocket max option. I also have a family of 5, and have a $1800 per year out of pocket max from an ACA plan. You would still have the same level of premiums as you do now for silver plans, but you would save 13K a year. You are picking bad plans, dude.
Our system has problems, but when you make enough to not be subsidized, yet still pick a crappy 40K per year plan, that is beyond the systemic problems. It is a bad choice. There are insurance consultants who work with people, especially high income people, to find good plans for their family. You should be calling them.