David,
the Tufton-Buftons in the Telegraph are outraged.

No. They are just Telegraph readers. The core Tory vote. Not any kind of elite or ruling class.
No Tory government can afford to alienate them.

Steve,
. There was no mention of customs unions, single markets or Irish borders on my ballot paper.

Of course not on the ballot paper, but it was made explicit in the campaigns that voting leave would take us out of both.
The Irish border is an invented issue. No change is needed.

. Good job there WAS no mention of a customs union or single market on the ballot paper. Most of those voting wouldn't have had a bloody clue what they were.

Only if they had ignored both campaigns!

the cowardly Cameron, running scared of UKIP and his own backwoodsmen, handed that one down to an ignorant electorate.

With the full support of both Labour and Lib Dems.