The phrase "a focus of discontent" is correct and usable in written English.
It can be used to describe a particular issue, situation, or entity that is causing dissatisfaction or unrest among a group of people.
Example: "The recent policy changes have become a focus of discontent among the employees, leading to calls for a meeting with management."
Alternatives: "a source of dissatisfaction" or "a point of contention".
Jimmy's Hall is now a focus of discontent and an dangerous alternative power base.
Their action raises the risk that - as at the Beijing Olympics in 2008 - the torch relay could become a focus of discontent towards the host government.
On August 17th the prime minister, Manmohan Singh, called Mr Hazare's hunger strike "totally misconceived".But he has become a focus of discontent about a government widely seen as fatally compromised by corruption.
Alison Carnwath, a high-profile serial director with a seat in the boardrooms of a number of major companies, has become a focus of discontent among investors after suffering an embarrassing protest vote by investors at hedge fund Man.
1 May: Carnwath, a high-profile serial director with a seat in the boardrooms of a number of major companies, has become a focus of discontent among investors after suffering an embarrassing protest vote by investors at Man.
After the legislature adjourned in August 1786 without substantively addressing these complaints, rural Massachusetts protestors organized direct action, and began protest marches that shut down the state's court system, which enforced tax and civil forfeiture judgments and had become a focus of the discontent.
On the far right a new focus of discontent emerged in Jean-Marie Le Pen's National Front Front Nationall), which scored successes with its campaign to expel immigrant workers.
More recently the BBC has faced sustained criticism for the amounts paid to executives and talent, with Jonathan Ross's £5.6m-per-year deal a particular focus of discontent.
Unemployment is at historic lows and disposable incomes are unlikely to slide between now and October (although the possibility of protests at the World Cup may provide a focus for discontent).
Akbar Ahmed, the chairman of the Islamic studies department at American University, said the sea burial prevented Bin Laden's resting place from becoming a focus for discontent.
The first-half financial results conference in July brought a focus for discontent.
