first time an opposition party has lost votes in local elections which is when the public give the government a kicking as a rule, wow, I aint a sympathizer of Labour far from it, but I would rather they got their act together so we had a strong opposition who could hold the tories to account when they regularly fcuk up.
I don't think going back too far in history is relevant to politics at the moment. EU Ref, Scotland changed completely by the Scottish Indy Ref, UKIP.
The coalition had a massive kicking and the brunt was taken by the Lib Dems. We are only 1 year into this Tory government, with Corbyn leading Labour for only 8 months. When Corbyn took over, Labour were 14 points behind in the polls. According to local election results, they are now 1 point ahead. That's not a bad trajectory.
I'd be very surprised if Labour could win a majority in 2020, but I wouldn't be surprised if the Tories lost theirs, small as it is.
As for opposition, Labour actually oppose the government now, rather than vote along with them and wring their hands. Tories have made U-Turn after U-Turn because Labour have been opposing them, causing Tory backbenchers to fear a backlash from voters who might seek an alternative now a clearer one has been presented to them. See Tax Credits, cuts to disability benefits, this latest stuff with the academisation of schools etc.
Considering the media establishment are entirely against him, Corbyn is doing a very good job. If only the Scottish Labour party would get rid of their Blairite leader, they might do a bit better up there as well.