That is not a satisfactory piece of logic. Why does more organisation mean more opportunities? It might just as well mean far fewer opportunities. An example. The National Trust is pretty much the largest landowner in the country and I don't think one could really say that the organisation of all that land into one organisation has increased sporting opportunities, far less increased the security of fieldsports.
More of an open target to creeping bureaucratisation and wokery.
The best defence of field sports, as most other things, is obscurity and privacy. One must also be careful not to throw it out of our own hands with misguided "initiatives". Several of which have severely damaged the outlook for shooting sports in the UK in recent years.