Wrong, you're in the bubble. 

Basis on inherited shares is stepped up for estate beneficiaries, meaning no tax would be collected on previous years or decades of share appreciation and capital gains:

Death and Capital gains -..... stock sale was unnecessary, assets can be divvied up and distributed in-kind, each beneficiary getting their fraction of the number of shares of each stock. And then your share of the $5M has a stepped up basis, meaning if you sell that day, your gains are near zero....

With large estates, the "death tax" prevents the avoidance of any tax at all on capital gains when shares are passed to beneficiaries without sale.

Ah so now we're onto the Estate Tax, another republican scam to fool the 99% with bogus arguments that most will not research enough to understand. First we need to define "estate." In the popular imagination estate means "landed property, usually of considerable size." That's why talking about family farms is effective propaganda. But words usually have more than one definition. In this context estate means, "The whole of one's possessions, especially all the property and debts left by one at death."

The majority of estates that are large enough to require filing an estate tax return consist of unrealized capital gains that have never been taxed, not real estate.

Much of the money that wealthy heirs inherit would never face any taxation were it not for the estate tax.  In fact, that’s one reason why policymakers created the estate tax in 1916:  to serve as a backstop to the income tax, taxing the income of wealthy taxpayers that would otherwise go completely untaxed.

Under the current tax system, capital gains tax is due on the appreciation of assets, such as real estate, stock, or an art collection, only when the owner “realizes” the gain (usually by selling the asset). Therefore, the increase in the value of an asset is never subject to income tax if the owner holds on to the asset until death.

What we're talking about here is about 5 thousand of the richest Americans 2/3 in the top 10% and 25% in the top 1%. Only about 80 "small farms" and business will pay any estate tax a year and it's usually not the value of the farm that cause them file an estate tax return. Most of these so called farmers are extremely wealthy land owners with estates that mostly consist of capital gains from investments that have never been taxed.

Republicans make an emotional appeal to repeal this tax by playing up the idea that some poor hard working farmer is losing his land but most of the so called farmers are so wealthy that they pay off the estate tax from other income sources and don't sell the land. The Tax Policy Center estimates that small farms and businesses will pay $30 million in estate tax in 2017, fifteen hundredths of 1 percent of the total estate tax revenue.