None of that changes the fact that tax breaks will be greater in absolute numbers for wealthier individuals than for those earning less. Play games to fudge numbers so all is not equal as much as you want - those with resources avoid participating in socialistic wealth redistribution.
No income tax is far simpler. Do you know what the cost for enforcement of individual income tax is? Hint: think astronomical.
Go after about 140 million individuals vs working with approximately 28 million businesses? Do you think business or individuals are more professional? Who had the bright idea to create such a logistical nightmare?
You can keep working with an insane system if you want but people with resources do what people without resources would eventually do in the face of direct taxation, whether financially or physically - leave.