The phrase 'as a widespread problem' is correct and usable in written English.
You can use it to describe a problem that affects a large amount of people, or a problem of considerable extent. For example: "The problem of homelessness is becoming increasingly severe, as a widespread problem across the country."
"They have no viability," he said, citing inexperience as a widespread problem.
From CEO's through to the most junior staff, health & wellbeing is increasingly recognised as a widespread problem.
In neighbouring Washington state, with demographics nearly identical to Oregon's and a ranking of second on the hungry-states list, hunger is hardly mentioned as a widespread problem.
Experts say that antiquities theft in China surfaced as a widespread problem only in the last 20 years, as local inhabitants learned of the value of ancient objects, some excavated illegally and some taken from their own homes.
Physical clutter, as a widespread problem, is only as old as modern consumerism: before the availability of cheap gadgets, clothes and self-assembly furniture, it wasn't an option for most people to accumulate basements full of unwanted exercise bikes, games consoles or broken Ikea bookshelves.
In another example of what is seen as a widespread problem of witness intimidation, a woman, Anyea Williams, changed elements of her testimony about her boyfriend, Edward Peoples, 23, who is charged with murdering Rahman Jenkins, 33, in the courtyard of a Newark housing complex after the two men argued over drug turf in January 2006.
Illegal projects such as this are a widespread problem in Indian cities, as there is a major shortage of housing in urban areas.
As anthelmintic resistance is a widespread problem, there is a growing interest in finding alternative control strategies that take advantage of the host's natural resistance [ 1, 2].
"There is a big appetite for this kind of product, as mobile/app addiction is such a widespread problem," says Sah. "The difference [between QualityTime and rival apps] is that ZeroDesktop is leveraging its cloud-based solution expertise to create a family of products in this arena.
About 6% of the identified musculoskeletal consultations could not be attributed to a region or to being a widespread problem as the recorded codes lacked enough detail.
Late nephrology referral is a widespread problem, as described by Sprangers, et. al. who claim of up to 84%% of patients are referred late [ 30].
