The theories you're supporting would make reporting on US government secrets illegal. You should stop and think about how fundamentally this would undermine the freedom of the press and the ability of the public to know about what their government does in secret. Black-and-white/yes-or-no/kindergarten level of analysis? Sure, that's correct.
In the real world? It's not correct at all. For starters, it's perfectly legal to ask for classified information, because it's well understood that a source generally will not provide any classified information (because the source would face criminal sanction if they do). However, if the source is willing to reveal said information, and the journalist did not solicit it, then the journalist is free to publish it because journalists are not covered by classified information laws (in the US).
If, however, the journalist solicits the information (by offering something of value, not necessarily monetary), or by assisting in the acquisition of the information, then they have violated various US laws, because they've crossed the line.
Assange is alleged to have performed acts that could be construed as attempts to access classified information, beyond merely asking for it--specifically, it is alleged that he assisted Manning with attempting to acquire and decrypt classified documents. That is the heart of the issue--if Assange had merely accepted a document dump from Manning (as he generally did with most other sources), he wouldn't be facing 18 charges today.
However, Assange is also not protected by free press rulings. Because he's not a journalist. He's just a parrot. A parrot merely passes on what's given to them. A journalist verifies their sources, the information they've received, and exercises some sort of analysis and judgment in deciding what to publish. Assange literally did none of those things until it came time to interfere in the Trump-Clinton election, when he chose to bury the Trump documents he received and time the release of Clinton-related documents, most of which are now known to have been partial or whole-scale forgeries by the Russian intelligence agencies.