The US, like it or not, has specific carve out allowances for firearm ownership by the mass civilian population. You may not find it reasonable.
You make it sound far worse than it actually is. But everybody legally able to own a firearm, is also legally able to own any NFA item (if they are legal in their state of residence).
All you have to do is pay $200, submit your fingerprints, file an application and wait. You don't even need to provide them with a reason. And as long as the application is in order, and you're legally able to possess a firearm, there's no reason at all to refuse the application.
Also, Texas no longer cares about the NFA as far as suppressors are concerned.
The endless 'defence' for bad rules makes no sense either, it's okay to say "it isn't perfect and when we find a better way we might adopt it". Rules are just constructs that can be changed.
Life also doesn't revolve around states and guns, and countries that do seem to have a partial culture revolving around just that are generally very young countries that seem to be stuck in a vicious circle.
Instead of blindly deferring reality to an amendment to a man-made rule you could also engage in proactive betterment of society.
I do, we just disagree on this topic.