That isn't a realistic take on the last few decades. Everywhere outside the CAs and NYs is lookin pretty rosy compared to what it was back in `89.
https://www.handgunlaw.us/images/rig...ry-history.gif
If that's losing inch by inch then you have an impossible standard for winning.
Ignoring the CCW revolution of the 90s and the permitless revolution that's ongoing even the NFA has been effecitvely whittled away at by 2% inflation, the internet (eforms, how-to guides, kiosks) and no more CLEO permission, etc. What used to practically be a secret society is vastly more approachable. It's worth mentioning that it's gone from asking permission to a bureaucratic statement of intent.
No, it isn't perfect and no one's saying call it won and done. The brace situation is a reversion to the mean, not some sign that gun rights are doomed. There are absolutely more important things to focus on than how some bloody stock that's not a stock has turned into a slow motion trainwreck.