The speaker and his members are caught between two competing forces: conservative eagerness to target the president and skittishness from members in battleground seats.
They have nothing to contribute because they have no higher priority than themselves.
WaPo put together a list of the supposed reason for impeachment and who proposed the idea. They are all crazy pants:
Impeachment threats
President Biden: Afghanistan withdrawal (Reps. Marjorie Taylor Greene, Lauren Boebert, others)
Biden: border security (Greene, Reps. Bob Gibbs, Bill Posey and Andrew Ogles)
Biden: Hunter Biden’s business dealings (Greene, Ogles, Reps. Jim Banks, Claudia Tenney, others)
Biden: covid-19 eviction moratorium (Greene, Gibbs)
Biden: selling oil from strategic reserve to foreign nations (Greene)