They are wrong but also unrelated to the issue of free public transport and hence include trade offs which don’t directly affect public transport.

Effectively, to offer free public transport, you have to reduce the power of lobbyists and dark money in politics.

To promote solar power, you have reduce the power of lobbyists and dark money.

To promote anti-vaccine ideology, you have to reduce the power of lobbyists and dark money.

To promote a strictly equal society where every person is judged by their abilities and not ethnic history and skin color, you have to reduce the power of lobbyists and dark money.

There are vested interests in every debate and saying we should aim for wholesale societal change for every low hanging result is a recipe for inaction (or at least, very delayed action)