The phrase "arguably harm" is correct and usable in written English.
It can be used when discussing a situation or action that may cause harm, but where the extent or nature of that harm is open to interpretation or debate.
Example: "The new policy could arguably harm the environment, depending on how it is implemented."
Alternatives: "potentially damage" or "possibly injure".
Why do street criminals get stiff prison sentences, a practice that has led to the disaster of mass incarceration, while white-collar criminals, who arguably harm more people, get slaps on the wrist--if they are prosecuted at all?
A TRADE WAR BETWEEN THE UNITED STATES AND CHINA would also arguably harm many of the allies with whom the United States is working to execute the "pivot to Asia".
Indeed, the climate movement has arguably harmed itself by not paying enough early attention to generating alternatives for workers in carbon-intensive sectors.
They have sown confusion about scientific facts and damaged our discourse on the topic just as they have -- in the personal smears Mann has endured -- arguably harmed his reputation.
Arguably, what harms autonomy harms identity.
If they had not learned about the schizophrenia research, arguably no harm would have come to them.
When the viewer is merely a John or Jane Doe from the Heartland with no political authority besides a single vote every two years, there is (at least arguably) no harm or foul in depicting this sort of scenario involving a foreign leader.
However, barrier precautions to contain and protect HCW and other patients from infection with drug-resistant or virulent organisms may arguably cause harm to those patients under isolation.
They do the biggest business and arguably the greatest harm.
Osama bin Laden has arguably inflicted more harm on America indirectly than directly.
And with paper money – particularly large-denomination notes – arguably doing more harm than good, currency modernization is long overdue.
