Kevin.
The factt is, large numbers of men did volunteer in the early part of the war. Whether they were misled into doing that or not is a subjective judgement, not a "fact" - basically it comes down to whether you ggree with their choice or not

We know from research done on letters, diaries and surveys of veterans that they overwhelmingly believed and continued to believe that the war was both right and necessary.

That it WAS right an necessary is disputable, but the overwhelming consensus among historians is that it was.
That happens to be my view too.
Anyone can disagree, but the historians are not all stupid cunts so I should not be dismissed in that way.