Modern helmets are more about fashion than safety with the increasing number of vents causing issues.
I find myself unable completely to agree with the above. It may be that there is an extent to which fashion (or similar) has some influence on the design of helmets, but I wonder whether there are any helmets whose design brief follows fashion more than it does safety - even if we do not agree with the parameters used for gauging safety.
There is less material to absorb an impact, and the material is also denser to maintain shape, again decreasing the ability to absorb energy. Modern helmets are in fact less effective than say ten years ago.
My helmet is around 15 years old and in terms of density, mass, size, shape and design it is very similar to the ones my children use which are about one year old. The appearence is different because of the 'aero-look' venting on the newer ones, but the only obvious 'snag point' on either design is the tail.
Now add the problem of snag points, the edges of the vents and pointed bits that break the smooth round line of a helmet. These can catch, causing rotational injuries, ejection of the helmet and also in some cases increase the injury if the snag point suddenly arrstes motion.
I can't disagree with this as a broad, sweeping statement, but on the majority of helmets there are fewer snag points than first appearence suggests. Many are simply vents whose graphics make them appear to protrude or have peaks.
So all in all the modern helmet is not a good opion and the level of protection is decreasing.
This may or may not be so. I suspect it is not so, but have no data to back up my suspicions. If the basis for the initial word 'so' is the argument made in the preceding paragraphs, then I do not agree that one follows the other....
Which brings us to standards and Lidl. These helmets are likely to be certified to the feeble EN1078, a standard that is so risible and offers so little protection that it is no longer accepted as worthwhile in the USA - Turn up for a racing or triathlon event in the US and when they stop laughing at you they ban you as the helmet is useless.
Yet we still allow them to be worn here!
I'm not sure an anti-helmet stance is strengthened by arguing that other (overseas) pro-helmet groups are opposed to safety standards used by manufacturers for hemlets sold in the UK. You appear to be saying that there are people who also insist on helmet use who would not approve of the use of shoddy helmets... Good for them! As to US Federal Safety standards in the wider sense... I cannot drive any Citroen with oleo-pneumatic suspension in the USA or drive a car with headlights that don't conform to their federal safety regulations. This has more to do with restricting imports than it does with safety. I've been involved in the re-import of European cars and motorcycles from the US to the UK. The number of pointless 'safety' mods required just to limit sales of European products in the US was beyond belief... It all has to be stripped off for the UK market because it has no purpose and is totally pants. I do not take federal safety regs very seriously.
Finally on helmet design, Headway the head injury charity is pro -compulsion, but is now promoting a paper from teh British Dental Association that suggests facial protection should be mandatory.. effectively Headway is now for compulsory full face helmets!
If a pro-compulsion body is also in favour of compulsory full-face helmets, that fact alone does not weaken wider the pro-compulsion argument. I am not in favour of compulsion (at all), but I do not follow the logic of your final point.
One might as well say: "This person who states that umbrellas are a good idea on wet days also says that submarines should be made of cardboard... It is therefore clear that umbrellas are not a good idea on wet days."
My apologies if this comes across as troll-like.