Welcome back Malcolm
I don’t always agree with Malcolm Turnbull, and I disagreed with him regarding the ETS (which I think is poor policy), but I am happy that he has decided to stay in politics. He is a smarter than the average politician and I think he has good instincts on economic and social issues.
I know not everybody agrees, but I think Turnbull is a real asset to the Liberal Party. We are not a party with a strict ideology, but include a “broad church” with a range of views on a range of issues, inspired by a broadly liberal & conservative philosophy. The views of Malcolm (while not quite the same as mine) certainly need to be represented, both in our Party and in our Parliament.