It is not a “fetal position”... it is more like “supine” and the GOP “leadership” are catamites assuming that supine posture.
“fetal position” or not, The democrats got their number and they have already surrendered their one trump card so there really isn’t anything they can do but lose or grow a spine and stand their ground in a big way. That means shutdown for many weeks.
If they were really concerned about that they would resign from their position and allow someone else to take their place as Speaker and majority leader someone the Democrats don’t already believe(really know) to be spineless. Even then that person would probably have to lead us to a shut down just to prove they have the resolve John and Mich have always lacked.