I would have taken that position when I was younger so I won't be too critical. But IRL trusting centrists politicians to spend that money properly and actually build mass housing is mostly a pipe dream. They can't even build a single railroad in the country let alone hundreds of thousands of houses in the city proper.

Radicals rarely take government for long... and as long a capitalism is the only true wealth generator for the public I wouldn't gamble on the far-left being the party that achieves that rare feat (absent a dictatorship).

It's easier to just campaign for government to do less instead of more. Just let people build things they need. There's already massive pent up demand and private capital ready to build housing the second government lets them. It doesn't need risky advertising for more taxation.