Under pressure over his leadership, Sir Keir also ruled out a liberalisation of drug laws – saying he had “seen too much damage” in his past role as a prosecutor.
And he called for stronger trans rights laws to replace the current “demeaning” legislation, without going into details on the controversy over access to women-only spaces.
Asked about leaked Labour focus group findings suggesting voters believe he must “stop sitting on the fence”, the Labour leader said he had a “driving determination to root out inequality”.
“Yes I’m patriotic – that was one of the issues that was in this report that was leaked,” Sir Keir told Sky News.
He added: “The whole Labour movement is very patriotic We are in politics to change our country for the better – you can’t get more patriotic than that. I’m very, very comfortable with it.”