The phrase "obstruct them from" is correct and can be used in written English.
It means to prevent or hinder someone or something from progressing or moving forward. Example: The protesters blocked the road with barricades, obstructing the police from reaching the building. In this sentence, "obstructing them from reaching the building" means that the protesters prevented the police from reaching the building by placing barricades in their way.
Consider when African-Americans (and other minorities) and women received the right to vote and any measures taken to obstruct them from taking advantage of that right.
These subsidies are an integral part of the Affordable Care Act, but congressional Republicans have sought to obstruct them from the start as part of their wider campaign to hamper Obamacare programs and strengthen the GOP case for repealing the law.
A number of novel imaging modalities have been developed but they are still in the initial stages of development and serious drawbacks obstruct them from offering their benefits to the medical field.
However, student disabilities or non-proficiency in language obstructs them from STEM learning and career success.
If the government is obstructing them from doing their work, they should call the government on their bluff".
This could be due to that luxuriant vegetation obstructs them to protect from predators, and the high subterranean biomass make them hard to burrow underground [ 41].
I saw people in the crowd throwing punches at police officers, I saw police officers moving people who were obstructing them or preventing them from doing their job.
Interestingly, tumor cells that create the channels turn on the same genes and release some of the same substances that prevent blood from clotting and obstructing them.
In a report last week, the Consumer Financial Protection Bureau said a number of the Education Department's contracted debt collectors misled troubled borrowers and obstructed some of them from making payments to get out of default, likely violating federal law.
In parallel to killing or capturing the head of government, loyal military and security units must be immobilized to prevent them from obstructing the coup.
Nine are also accused of willfully obstructing the police, who removed them from the site of the protest, and three have been charged with assaulting police officers; all 16 pleaded not guilty to the charges.
