If you're going to argue against it, at least get your facts right. After Pelosi proposed the commission,
McCarthy tapped Katko to negotiate the terms of it and gained everything the GOP wanted, including full subpoena power on both sides. It was to consist of 10 non-governmental experts with each of the four congressional leaders appointing two members each and a joint decision made by Dems leaders as to the Chair and the GOP selecting the Vice Chair. You can't get anymore non partisan than that.
McCarthy didn't expect Katko to gain everything they wanted so needed a new excuse to prevent the commission from occurring, hence why he stated they would vote against it unless the investigation included the BLM riots as well (which is/was a wholly separate matter).
So here we are now wherein a bipartisan commission is still going to occur with Liz Cheney selected to sit on it - due to being willing to tell the truth and put country over party - and McCarthy permitted to select 5 other GOP members (now subject to being vetoed by the Dems should they have previously demonstrated hyperpartisanship) and have now lost full subpoena power. Interesting how most GOP members don't want to be on it - except for extremist nutcases like MTG, Gaetz, Boebart, etc - because they fear negative backlash by Trump's base with respect to their careers, the truth be damned.