I'd argue that we have the exact opposite problem. Newcomers think that they deserve information for free, just for showing up. Nothing worth doing works that way. Worthwhile things have a cost, hunting is no different. This isn't a weekend softball league just looking for participants.
Western hunting in particular is a game of limited supply and expanding demand. Keeping secrets isn't creating roadblocks; it is just the absence of a free pass for someone who hasn't earned it.
Claiming that failing to give away costly information for free will lead to the legal demise of hunting is a weak stawman argument. Hunting interest is ballooning as a result of the spread of information on the internet. It appears that most of that interest comes from people looking for Type 1 fun absent of any kind of investment up front to become competent. That's not how it works. If I've spent years of my life, thousands of dollars, and hundreds of hours learning something how much of that is owed to someone who has done nothing but get excited about a hunt after watching a Youtube video?
Want to know how to hunt Hawaii? Do some base research, spent $600 on flights, $1k on food and lodging, and a week doing what you can to befriend locals and learn the game. Then keep the secrets you've earned and enjoy it.