The phrase "activists consider" is correct and usable in written English.
It can be used when discussing the opinions, beliefs, or evaluations of activists regarding a particular issue or topic.
Example: "Activists consider climate change to be one of the most pressing issues of our time."
Alternatives: "activists believe" or "activists view".
Activists consider this proof of how the anti-extremism legislation has spun out of control in the regions.
Some of the dot-com activists consider what they are doing enlightened self-interest, perhaps even enlightened opportunism.
While immigrant rights activists consider the court's decision a victory, our nation remains plagued by its broken immigration policy.
Some Occupy activists consider it a chance to push the increasingly weak union movement into a more aggressive posture.
Among other things, Mr. Morsi is accused of conspiring with Hamas, the Palestinian militant group, to break out of prison, a charge many human rights activists consider implausible.
The applications offer the latest twist in a debate that radio executives and media activists consider one of the industry's most important issues in decades.
Activists considered this the last straw.
Many Saudi activists considered the treatment meted out to Ms. Sharif a warning from the monarchy against trying to organize any kind of movement via social media.
The plaintiffs needed to be willing to be the public faces for a court case that could take years to resolve, and that many gay activists considered unwise.
In the early 1970s, FBI director J Edgar Hoover spent the final years of his life intensifying the campaign against all political activists considered a domestic threat.
A 2008 report compiled by Brazilian human rights groups listed Da Silva as one of dozens of Amazon human rights and environmental activists "considered at risk" of assassination.
