In other words: liberal economists don't support eliminating the corporate income tax in the real world.
Yes, absolutely. But as liberals, let's be indignant about the impossibility of what you describe, rather than the impossibility of getting Apple to pay the same tax rate as an individual.
Not quite. To add to tptacek's earlier comment: Planet Money's feature was strongly criticized afterwards for mischaracterizing the panelists's opinions, and overselling them as full-fledged policy positions [1,2]. Besides, the members were not representative enough to reliably infer a "broad consensus" from their agreements alone.
[1] http://www.cepr.net/index.php/blogs/cepr-blog/the-disagreeme...
[2] http://www.samefacts.com/2012/08/drug-policy/planet-money-an...
It is irksome that some large corporations pay basically zero and others don't, but the ideal solution isn't to make 'em all pay.
See e.g. http://www.npr.org/blogs/money/2012/07/19/157047211/six-poli...