The majority of Wisconsonites are disgusted to unprecedented levels with the unions and their childish antics, and do not want the lunatics taking over the asylum. An increase in fervor among hard core union supporters is not going to help them any, it will only make their fall harder.
I wish this were true, however the polls I have seen have not been good at all for Walker and the Republicans. I've seen exactly zero polls that show Wisconsonites are particularly disgusted with unions or the childish behavior of the fleebagging Senate Dems. Can you cite me polls showing people are disgusted with the unions? Or is this just something you hope is happening?
Saying that, I do believe that once the Dems return home and the legislation passes that Walker and the Republicans popularity will increase. People like a winner, and if Walker/Republicans stand strong, they will be rewarded once this immediate battle is over. It is always tough to pass big change, and during the fight the politician trying to make the change usually suffer in the polls. If they see it through and win, they generally rebound nicely. Classic examples are Chris Christie taking on teachers unions, Margaret Thatcher taking on the trade unions in Britain, Reagan firing PATCO workers, etc. Walker and the Republicans in Wisconsin just need to hold strong and not cave in to the enormous pressure they are under.