The proponents dismiss those arguments.
Appealing to past successes in science and technology, proponents dismiss objections as only the latest form of Luddism.
The deal, which seemed assured when the General Assembly overwhelmingly approved construction of a state-built stadium in December, has been stalled by several complications that the stadium's proponents had once dismissed as pesky details.
But proponents of the initiative immediately dismissed the survey as a flawed poll that prompted negative results from respondents and deviated too much from others to be credible.
Indeed, proponents of tort reform dismiss the whole idea as little more than propaganda for trial lawyers.
Predictably, proponents of Star Wars are dismissing the warning inherent in the Cessna incident.
In response, proponent of Blue Labour Marc Stears dismissed the criticisms as "self-evidently empty".
Some proponents of martial arts are skeptical about demonstrations of empty force and dismiss them as tricks.
But proponents should not dismiss the pain of those Americans - probably a few hundred thousand over a decade - who will be laid off.
The industry's proponents dismiss the liability issue, saying their practices are safe and pointing out that there has never been a problem with a faulty prescription or drug.