Cosigning @jcp comment above. I think it would be better to start out with less important pools / pools that provide relatively less utility to traders.
Eg. switch the USDC/USDT 0.01% pool for the 0.05% pool, and USDC/ETH 0.05% pool (arguably highest utility pool on Uniswap v3) for 1% pool.
This positions the proposal as somewhat of a win-win; if LPs are put off by the protocol fees, they may be interested to move their liquidity to the lower fee tier pools which would provide improved utility to the Uniswap ecosystem.