So, which tax loopholes would you close? The mortgage, childcare, hire a veteran, educational, invest in infrastructure ones? Or others?
My company has gotten several tax breaks, it has freed up cashflow to hire additional employees. In your opinion, which is better...for my company to pay more taxes or to pay less but provide three more jobs?
I wouldn't consider any of those tax loopholes. Loopholes are when companies are able to avoid paying taxes thanks to technicalities or some extra paperwork. This happens all the time from oil companies to Hollywood.
Your example of your company hiring or being taxed is way too simplistic and does not represent an actual reality in regards to corporations and taxes. If it's true that less taxes meant corporations would create more jobs then we would never have had the unemployment crisis of the past few years considering that corporations are paying less than they have in over a century. The idea that corporations are "job creators" has been disproven many times over. A quick look at the current economic writing in regards to "job creators" should clear that up for you.