This is not blocking. This is just using their resources to better themselves. This is what successful people and organisations do.
Rugby League has no access to schools because it doesn't have the contacts or resources to.
Where exactly is the block here? Not one action you've described in that paragraph is by Union against League.
(Except for the crackpot theory that RL administrators are bad because of Union 'pulling strings')
Whatever ever happened to an equitable access to all sports!? Something not in the vocabulary these days? It's ok for some but not others. We fundamentally dissagree. This is an access issue not a self propagation of a superceded code(RU) that is stopping a sporting reality and growth of a superior version of rugby in league!