Yes, in an ideal world every point of view would be taken into account. But the nature of a referendum is to take a snapshot view at a given point in time, from those who are able and willing to vote. That's their very essence. There was a referendum in 1975 to confirm us staying in the then Common Market. I don't imagine too much thought was given then to the 33% who voted against, nor to those who didn't bother voting. Nor to those too young to vote at that time, or to those (including me) who were not yet born.
As far as those who for whatever reason decide not to vote when they could do, I've got no time. Their opinion is the least important as they have passed up their opportunity of their volition.
For those of a younger demographic who feel their opinion is more important than anybody else's - sorry, no. Democracy is based on every vote being of equal value, with no vote or group more important than anybody else's. To stray away from that principle is to go down an extremely dangerous path. One which essentially compromises democracy and would cause deep resentment among some, and an artificial feeling of self importance among others.
For those who were too young to vote in 2016, well hard luck. Again, a referendum takes that snapshot view at a given point in time. How else can it be done?
In conclusion, we were told that the result of the referendum would be honoured, and people voted in good faith based on that. If that result was not to your liking, then in democratic spirit you should bow to the majority will.
To now see the current shambles in parliament caused by a bunch of mainly remainer MP's manifestly hell bent on stopping brexit, is appalling. Puffed up with their own arrogant self importance, they clearly are quite happy to "piss all over" the majority of voters in that 2016 referendum. Not my expression by the way. I heard it today at work in connection with the same topic, and thought it was quite apt