That's not an interpretation that has ever had the support of any court, anywhere, at any time. Ergo, it is wrong. I am not an expert in international law. But I would hazard a guess that you can read the termination provisions of the ABM (and I presume other treaties), as ratified by the Senate, as a delegation of any hypothetical power Congress may have over the termination of treaties.
jks ^^^^^^ CB: Constitutional powers are not delegatable, generally speaking. ( Cite).
The President's power over termination of treaties is not found in the wording of the Constitution either,and is therefore also hypothetical.