No, you are NOT defending private property. 
Why is is that when you transfer money to a business or another person, you are to pay taxes on it? If I do a service and you transfer money to me for that service, then a tax is paid on it. 
By transferring money, estates, etc to a child, you are simply doing the same thing. 

What needs to happen is for taxation to become FAIR. 
The only way to do that, is remove all deductions, breaks, and exemptions and then create a progressive tax rate that is applied to ANY MONEY THAT IS TRANSFERED TO YOU. 
Get a 100K wage/salary? Pay X tax.
Get a 100K lottery? Pay X tax.
Get a 100K inheritence? Pay X tax. 
Get a 100K Dividend, gains, etc? Pay X tax. 

Start it once somebody is at a liveable wage, say 1% for anything over 25K.
Then cap it at 20-25%. 

This is fair.