I'd rather have a 230-205 Democratic majority with 150 DINOs than a 230-205 Republican majority with no DINOs.
I used to think the same way you and MilesC56 do until I saw our Democratic majorities in action the first two years of Obama's presidency. I feel quite differently now. Having a majority is useless if you can't pass basic liberal priorities, like the Employee Free Choice Act, or an Obamacare with a public option, or a stimulus package big enough not only to bring the economy out of free fall but also into a full Main Street-tangible recovery.