We need GOP majorities to control committees, rules, etc. If it takes RINOs to do that then we need to win wherever we can. If you can show how to cobble together a majority of pure (undefined) conservative Senators, then show me.
“Pure” is a red herring; you’re better than that. No one’s pure. GOP senators in IA, MO, AS, LA, PA, VA to name a few would help. I’d like to focus on turning purple states red and let MA, NY, CT, RI, and VT stew in their own socialist effluent. A regionally-polarized nation brings us to our goal more quickly IHMO because of the contrasts it sets up.