New York Gun Laws Eased - We are about to see more guns in public. Thoughts?

I think that's a little misleading and an overly simplistic take on this. The ruling is not saying that states cannot have licensing requirements. The ruling is not making constitutional (permitless) carry the law of the land. The ruling states that you can't have an arbitrary standard for determining who can and who cannot get a CCW. The entire concept of "Proper Cause" was the problem. Here's an example - in NJ there was a man in Sussex county who was kidnapped in a case of mistaken identity. He escaped his captors when their car broke down halfway across the country, came back to NJ, and applied for a concealed carry permit. He was denied both in his application and on appeal because, and I wish I was kidding here, despite fearing for his life that the kidnappers would come back and try again. The court didn't think this was a good enough reason to qualify under "good cause". The underlying problem here is that the arbitrary nature places a significant undue burden on the applicant. Getting a CCW in NYC is neigh impossible unless you are extremely wealthy, a celebrity, or are politically connected because of this whole "Proper clause". In the concurrent ruling by Kavanaugh and Roberts, they unequivocally state that they are not removing licensing criteria and consider it to be legal, but the use of any non-objective rules or standards as part of a licenscing scheme is illegal. That's a huge difference. They aren't saying the states can't require licensing. They are saying that these standards cannot be at the whim issuing authority. 

If your issue is about the use of a means-end test vs strict scrutiny, this has always been a longstanding issue. It standardizes how the courts have to review these cases instead of having circuit splits because one used strict scrutiny and another used intermediate scrutiny. We see it in 9th Circuit decisions all the time, where the state has some arbitrary reason that their need for added rules is justified for some unknown reason. We see it in NJ, where the state has some arbitrary reason to not enforce a law on the books stating that firearm permits are to be processed within 30 days of application for NJ residents (in favor of much longer wait times depending on the town. Newark and Jersey City, for example, take on average 9-12 months. The process typically takes about 3 months in most towns). This has been a huge problem with 2nd Amendment law. It's how you get rules, like in California, where you can only buy from an approved list of firearms until such a time that Microstamping is viable, thereby limiting what you can and cannot own. It's how you end up with California ignoring a DHS ruling that anything tied to the firearm industry was considered an essential business during the pandemic and effectively having a 60-day moratorium on buying guns and ammo (on top of the 10-day waiting period due to CA laws about purchasing guns and ammo - and I'm not arguing the cooldown period here because that's not the underlying issue), thereby depriving Californians of their 2A rights. This case, by the way, is currently pending an En Banc appeal and because it's California, the court would normally justify it based on the state having a means-ends/intermediate scrutiny argument in favor of the State's interest in ensuring the safety of its residents. I say "would normally" because who knows how today's ruling will shake up things in the 9th circuit. I think that particular point will make it harder to pass laws that are ridiculous (ex. banning cosmetic features - aka why does a firearm that looks like an AR get banned but a gun that looks like a Mini-14 Ranch Rifle), will hopefully require lawmakers to use more nuance and better justification for drafting these laws (ex. High Capacity magazines vs Low Capacity magazines - I won't argue that a Glock 33 Round magazine is clearly a high capacity because it is, but what's the difference between a standard 15-17 round magazine and a 10-round "low capacity" handgun magazine? Does that 1 extra round that makes it go to 11 all of a sudden turn a handgun into a fully automatic gun with unlimited ammo, a built-in no-scope aim-bot, and turn every round the magazine into the equivalent of a 50BMG on steroids? Sarcasm aside, I've never read an actual justification that makes sense for this one) instead of relying on common tropes as their excuse. 

As an ironic, and interesting, side note, The Sullivan Act, the law at the heart of NYSRPA v. Bruen, was named after, Timothy "Big Tim" Sullivan. Sullivan, part of the corrupt Tammany Hall machine and later both a New York state senator and member of the US House of Representatives, was involved in police corruption, kickbacks, criminal activity, prostitution, gambling, and extortion. The story goes that he controlled all the jobs and vice below 14th Street. There are differing accounts as to why he was able to get this passed, but the one reason that stands out to me is the theory that he did it to help keep his own associates in check.  

Mind you, that argument you made can be reversed with abortion. 

Roe v. Wade: Can't leave it up to the States

Dobbs v. Jackson Women's Health Organization: Leave it to the states to decide unless the Federal Government steps in