Because it's a transfer of wealth from one person to another, AS WE ALWAYS TAX. I thought I already said that. How can I say it in a way you'll finally understand? 

"Why should my hard earned money be taxed after I pay my workers?" 

"Why should the dealership pay taxes on the already taxed money I earned when I bought my car?"

Damn, son. Maybe in your world nobody would have to pay taxes as long as relatives were always involved.