The problem is, in general, to challenge a law you must have been directly affected by it.I think that anytime new laws are passed and gun owners immediately and willingly comply it just gives the antis more strength. They know a large percentage of pro-2A folks will fold like a cheap suit as soon as they pass more "laws". Unconstitutional or not, too many are ready to give it all up because .gov says so.
So, let's say you not comply by going to PSU strapped and you make a show of it just for grins and giggles...you wind up in jail, then in court challenging Oregon's new law. You get sentenced to a fine, maybe some jail time or community service, and then you appeal the decision as far as it takes to try and get the law overturned and ruled unconstitutional.
You end up paying a lot of money for that journey all the while risking that the court *doesn't* side with you.
That's asking a lot of people. Now, I think a perfect solution would be if the NRA banded together with other orgs in this community to work pro-bono on cases that directly challenge the constitutionality of anti-gun legislation...at least if this were the case, you'd have a larger pool of people willing to take the chance and start pushing back, hard.