All I see is moaning in shooting circles. Heck one discipline is far too fast to diss another. Our NRA basically said they weren't interested in military rifles. But they aren't the only ones.
How they heck did we allow sporting handguns to be banned? How the heck did we allow airsoft guns to have to be neon orange or blue?
The largest London march was put together by the Country Alliance. However, there are those who went and now moan it was under false pretences. Maybe it was to them, but thats not the point.
The most modern guns happen o be black, but wow how the woody boys show how much they don't like them.
We make our own bed, and its a lumpy one.

Far too many are meek about the subject.

Any metal machinist can make a Sten gun. Anyone can drive to Europe and smuggle back an assault rifle. Heck, you can buy most guns in France over the counter so long as you fill out an export form (no proof of identity beyond something that can be easily faked required.)

The USA NRA has clout because not only does it have millions of members but it has the cash to make a difference. When has anyone in the UK put £500 into a fighting fund. Maybe half a dozen.
So whose fault is it really? Its a cultural thing.