It may be expecting too much to expect most intellectuals to have common sense, when their whole life is based on their being uncommon -- that is, saying things that are different from what everyone else is saying. There is only so much genuine originality in anyone. After that, being uncommon means indulging in pointless eccentricities or clever attempts to mock or shock.
Can't liberals afford arches? All sorts of people are referred to as arch-conservatives but almost never do you hear anyone referred to as an arch-liberal.
At one time, I could tear a Washington phone book in half. Not only was I a lot younger, the Washington phone book was a lot smaller.
This is an age when people who are contributing nothing to society gain fame and fortune by denouncing those who are contributing something, because those who are contributing something are not doing so the way idle on-lookers would wish, or in a way that those ignorant of the process would consider right.
What is called an educated person is often someone who has had a dangerously superficial exposure to a wide spectrum of subjects.
One of the strongest arguments for the death penalty is that it means what it says -- unlike "life" sentences that can mean that the criminal will be back on the streets after a few years behind bars. Even "life without the possibility of parole" does not mean life without the possibility of escaping or without the possibility of electing a liberal governor who will set murderers free.