Surprised it isn’t 95% in favour

The Herald reports:

The Labour Party housing policy for first-home buyers has struck a chord despite the Government’s attempts to write it off as expensive and unrealistic.

Just over 70 per cent of the 500 respondents in the Herald-DigiPoll survey approved of Labour’s promise to enter the housing market to build 100,000 low-cost homes over the next 10 years.

I’m surprised it isn’t 95%. Who is against a political party saying they can wave a magical wand and produce houses  $150,000 to $200,000 cheaper than normal.  The problem is their numbers simply do not and can not add up. It is a con.