J.W.
I actually don't see anyone publicly saying keep the loopholes, quite the opposite. Privately every politician knows they we lose campaign donations if they close the loopholes now.
Until people realize that these things happen due to regulation and laws nothing is going to change. Stop crying we need more regulation because every new regulation comes at a benefit to some groups and the expense of others. Same thing with tax laws.
All tax rates need to be lowered, even those for the "rich" but at the same time every deduction needs to be removed. Only then will the system be fair.