I don't know how to make this any clearer.
The situation you described is where an investor is negatively geared to the tune of $100 per week (the only way he is going to be able to claim back the tax). He is out of pocket $100 per week to hold the property as the interest cost exceeds the rent. By the very nature of being negatively geared that $100 is going to the interest expense of the loan, it's not "after holding costs", it's not still invested in the asset and it's not the same as putting $100 into the bank or buying shares (outright).
It is.
In every case, you have Joe Bloggs putting $100 aside for his wealth creation each week into some type of investing vehicle. Everyone on earth has to do this to kick-off their wealth creation at some point...they have to put money aside for investing with. The only decision is which vehicle to throw it into.
You keep adding "yeah, but..." There is no need to look any further than what he physically puts in versus what comes back.
What comes back is a further $2600 he would never have got, and at the end of 20 years (as a figure) he has an asset worth probably 3 or so times what he paid for it.
How is this bad when at the end of 12 months his $100 per week in ING has returned him $260 approx Before tax, and he has not received $2600 in returned tax which the property would have? He is $2,860 worse off
Should he buy a property that costs him $100 per week? Of course not if he can buy one that returns him a pos cashflow instead.
But, many can't do it; they buy one that costs them some outlay each week. Is this bad? No, because in the end they will own a property which can lead to more (increased equity and further leverage), or some other form of investment. It is a worthwhile weekly expenditure when viewed this way.
At the end of the day, he still owns his shares parcel, he still owns his super contributions, or he still owns (is buying) the property.
You are viewing his $100 from his pocket for the property as an extra expense he has lost; as a bad thing. It isn't, and he hasn't lost it. It's going towards his purchase of the asset. He is spending $100 on investing.
It's like saying to him "give me $100 per week, and this will buy you a property, or "give me $100 per week, and this will buy you shares" and so on.
I guess we'll have to just agree to disagree on this one.