The reason the vast majority of people prefer these loans is due to the fact that they want to pay off the loan amount as quickly as possible in order to avoid paying the punitive interest. Additionally, unlike secured loans, unsecured loans are collateral free and don't carry the risk of property repossession whereby your property is seized by the lender in the event of a payment default.
if you have a small business which is in need of funding for some future business need. then perhaps you should get a loan. Alternatively you could apply for a business line of credit. Lines of credit are designed more for a generic need to have funds available. If you have specific business plans to make specific purchases or upgrades,
you want to be able to start a new company someday. Also if you do not have any collateral to point out then you have no choice but to get an unsecured loan for your business financing.
Business loans on the other hand do not have any collateral and so they must rely on your businesses history and credit score to determine if you are likely to repay the loan or not.