What are you wanting to hunt?
There are loads of opportunities here in the UK, they just take a bit of finding.
I think this is true.
I've been fortunate to get all my deerstalking, rabbit shooting and wildfowling free so far. It helps that I am a GP in a rural community, so I get to know everybody and am seen as respectable. But I'm sure the same applies to rural postmen, plumbers, policemen etc,.
There is also free 'public' shooting on Crown foreshore in Scotland. There are some areas which are permit-controlled, but the permit is usually cheap or even free. The wildfowling clubs offer sport at low cost.
Recently I took a half gun in a syndicate, so £250 gets me 3 days rough shooting pheasants, plus a day at the roe deer, plus more pigeon shooting than I have time for.
Or the BASC offer the red stalking on Arran, which is pretty cheap for what you get.
I've also been offered shooting in return for beating.
The opportunities are there. I think it helps if you
-live in a rural area
-have a 'respectable' job
-are looking for shotgun or rifle sport rather than air rifle (but I appreciate the problem with rifles: to get the certificate you need somewhere to shoot)
-are prepared to go beating
-are prepared to buy the odd bit of sport here and there to get your face known