The phrase "a poor argument for" is correct and usable in written English.
It can be used when critiquing or evaluating the strength of a particular argument or reasoning in a discussion or debate.
Example: "The claim that increased screen time leads to better academic performance is a poor argument for allowing unlimited access to devices in schools."
Alternatives: "a weak justification for" or "an inadequate rationale for".
California's blackouts are a poor argument for bailing out British Energy.
It is a poor argument for allowing or undermining the seriousness of bigotry against hundreds of millions of people.
But prestige is a poor argument for change: in the real world, it may not matter that some commissioners are not recognised by their own Eurocrats.
But this is a poor argument for making racial discrimination a permanent evil.The most recent census shows the old black-white divide breaking down in America.
However, the leave campaign claims this is a poor argument for remaining in the EU, with first-time buyers and their parents not averse to the idea of the housing market cooling down.
By ignoring the true benefits of Social Security deferral, the CFPB makes a poor argument for deferral and implies that it has minimal value to Americans, when in reality it can provide amazing longevity and inflation protection worth hundreds of thousands of dollars to retirees.
This is a poor argument on two grounds: for one, expensive new housing and schools would have to be built in the United States to accommodate the families and, more important, it would have a dreadful effect on morale.
But a highly intelligent person can advance a poor argument.
The "what are you doing for the children?" straw man appears powerful and compelling but it's a pretty poor argument.
Saying that something is awful, she said, "is a poor substitute for an actual argument".
Frey is a poor lawyer for himself; all the arguments I'd made to myself about the inadequacy of fiction vs. nonfiction as categories, the unreliability of all human narration, and the culpability of his publisher and book publishing under capitalism sounded instantly anemic and petulant in his own words.
