Where do you guys come up with this stuff?
There is validity in the fact that you're cashflow limited in terms of expanding rapidly, but outside of that you just spewed a bunch of total bullshit. You aren't getting commercial loans for a small business without a personal guarantee. You aren't going to get out of the loan unscathed even if you declare bankruptcy. You aren't saving money with tax deductions on interest.
This whole idea that you can go into a bank and get substantial commercial loan to risk on some business idea is totally insane anyways. The loan officer will not even fill out the paperwork for the underwriter unless your business has years of positive cash flow along with you having stellar personal credit and some assets. Even then many lines of credit require a 0 balance at least once annually, so you can't just rack up debt and let it sit for years.
Tell me which businesses do you think fared better these past few years? I'm not talking about mega tech corporations like Apple, Google, Microsoft, or even large conglomerates like Berkshire. I'm talking real small business. 100K-2 million annual revenue type business. Do you actually believe the debt laden companies fared better than the debt free companies these past few years?
Debt is often a gamble that your forecasting will be correct. You're making an assumption that if you make money off 1 truck then 5 trucks will make just as much and cover the note and then some. While this does work out many times it also has a much higher probability of failure than just being patient and cash flowing everything.
Personally with the way the economy is right now I would not be taking on any debt, and yes that's taking inflation into consideration as well.