The phrase "argued directly" is correct and usable in written English.
It can be used when discussing a straightforward or unambiguous argument made by someone in a debate or discussion.
Example: "In her presentation, she argued directly against the proposed policy, highlighting its flaws and potential consequences."
Alternatives: "contended openly" or "asserted plainly".
No lawmakers argued directly that the waste should simply be sent out of their backyards.
At one point, she argued directly with Mr. Biden over misgivings among some in the military about the timing of pulling troops from Afghanistan during the warmer months, when fighting is often heavier.
But Hume argued directly against Hutcheson's approach to our other-directed passions, distinguishing sharply between extensive benevolence and limited generosity.
Some have argued directly that law does not require coercive backing in order to count as law (e.g., Raz 1975), holding that what is instead important is that law is made by the appropriate authority (see also Oberdiek 1976).
In a July 2011 piece for Bloomberg View called "Too Much Debt Means the Economy Can't Grow," they argued directly against further economic stimulus, warning that "we think it would be folly to take comfort in today's low borrowing costs, much less to interpret them as an 'all clear' signal for a further explosion of debt".
In 2014, he said: "I deliberately do not argue directly for the interests of the modern coal industry and I consistently champion the development of gas reserves.
We can argue directly for the same conclusion.
Moreover, Duhem does not argue directly for the non-falsifiability thesis.
Steiner et al. (2013) argue directly from the safety of conventional hybrids to the safety of GM stacks.
This third type of argument for universalism has also been used to argue directly for the existence of temporal parts.
Fisher (1978) argues that here and there in his work Cauchy did "argue directly with infinitely small quantities treated as actual infinitesimals".
