The phrase "are widespread enough that" is correct and usable in written English.
It can be used to indicate that something is sufficiently common or prevalent to lead to a particular conclusion or effect.
Example: "The findings of the study are widespread enough that they could influence public policy on health issues."
Alternatives: "are common enough that" or "are prevalent enough that".
The problem, Haidt decided, was widespread enough that it merited further research.
The researchers say the phenomenon may be widespread enough that climate scientists should take it into account when estimating the amounts of heat-trapping gases in the atmosphere.
The concern is widespread enough that Mike McNerney, a brawny 32-year-old who is the civic group's vice president, has proposed the revival of a tool reminiscent of the city's high-crime era: a civilian crime patrol.
The latest campaign has been widespread enough that two California federal courts and the administrative office of the United States Courts posted warnings about the fake messages on their Web sites.
The extortion attempts have been widespread enough that the brokerage industry's self-governing regulatory agency, the Financial Industry Regulatory Authority, warned its members in June to contact the F.B.I. if they received a message from DD4BC.
The official said that the number of these bombs in use was very small, and that the technology for making them was widespread enough that their presence did not indicate Iranian support for the rebels, who are seeking the ouster of an Iranian ally.
Kirkham's fame as a referee was widespread enough that, in addition to multiple internationals, he had been selected to officiate one of the most daunting assignments imaginable: a one-match playoff between Celtic and Rangers to decide the 1905 Scottish League title.
"This issue is widespread enough that I feel like almost every iPhone 6 or 6 Plus has a touch of it (no pun intended) and are like ticking bombs just waiting to act up," Jason Villmer, owner of repair shop STS Telecom, told iFixit.
