My partner and I had a child in the last year and he was born with a british passprot as that is more valuableand we want the best future for him
In that case get a Polish passport for him too. More passports is usually better (although you do need to take care with some of them). A British passport certainly gives access to more countries without visas than a Polish one (and better visa options in many others too, such as working holiday visas in Australia), but having a second passport is rarely a bad thing.
So many traveling Brits regularly run foul of local laws and end up banged up abroad that there is always a high demand for consular services.
If you'd ever lived abroad, you'd know that the foreigners in pretty much any city in the world can tell you that by far the worst consular services offered to citizens. As I said years ago here: The consensus view from Brits in Warsaw is that if they were laying in the driveway of the British embassy bleeding to death, the only reason that staff would call security to have you removed is so they could get their cars in and out.
By the way, before you do finally leave America, you might want to learn what consulates can and cannot do. Fortunately, so many of your fellow Americans get arrested in Mexico that the US consulate has found it necessary to produce a special "Guide of US citizens arrested in Mexico", have a read, it's a good laugh:
tijuana.usconsulate.gov/root/pdfs/telegalcriminalguide.pdf
Some passports are still much more desirable than others. The black market price for stolen ones reflects that.
These days the photo on a stolem British passport can be one of the most important factors when it comes to the value of it.
Who is more likely to be singled out, kidnapped for ransom, or killed on a hijacked plane or in far-flung war torn area of the globe? Someone waving a British passport around or someone who can produce a Polish passport?
Yes, but the answer to that problem is much the same as the reason why one doesn't need to worry about out-running a lion when on safari. All one needs to worry about running faster than is one's fellow tourists, so it's a great idea to go on safari with fat people: they can't run fast and make far more attractive targets to lions. In the same way all one would need to do is to travel with people such as you, Bieganski: people who can only produce an American passport (given the way terrorists around the world focus in on Americans and Israelis).