No, I didn't miss your point.. I was reflecting on how the major parties also lack real substance, often are petulant and will vote (or not, as the case may be) with the other no matter how stupid to do so. The Greens get called out more by the press for it, that's all.
Let's look at some examples - virtually the whole of the LNP (maybe Simon Birmingham excepted),, you're telling me they are better and have more substance and less grandstanding than the Greens? Yet, they still win the most of the primary vote, which, if people really cared about lack of substance and being petulant/grandstanding and predalling BS policies, they would probably be behind the Greens.
Even Albanese duing the Voice referendum would not allow debaete on a private members bill to ban lying in political advertising (to my knowledge, under comsumer law in Aus, it is not allowed for commerical advertising). You know, wouldn't want to vote for something to make the debate.. fair and even politics more fair?. Self-destruction? Well, lets not forget Keating v Hawke - what saved them in the end was Hewson as the leader of the LNP; nor the Rudd --> Gillard --> Rudd debacle.. Oh, and for letting loonies in to the party - don't recall Latham in ALP? Not even as the leader of the party (thankfully) in opposition? He has turned out to be a very safe pair of hands, hasn't he? On the LNP side, wherre do you stop? The Greens had one notable one recently, and a few over the years. Again, on that metric, the LNP would be last to get votes, then the ALP..
I think you're missing my point. I would invite you to read their policies and implementation plans they had at the last federal election - all seemed pretty well thought through and costed. I don't agree entirely with all of it, but it was the amateurish muck-raking and rabble rousing the press likes to make the Greens out to be probably has more to do with them not getting into power than their real conduct or policies, or ability. As to whether or not they have the depth or comeptenece to do it - how is that different to either of the majors today, though I will put Labor ahead of the LNP, in either case, the bar is not that high. They Greens, when you peel away the BS, don't seem to be less competent than the others.. They just don't have as many members, and they get even worse coverage in terms of media bias (IMHO) than the majors, or really, than the ALP.
That is my point - yes as a minority party and yes they get to throw stones. But they are no worse than the others with whom we falsely credit more responsibility and ability, so why not vote for them? If I were in Aus at the last election, they would have got my #1 on both the senate and HR tickets.