Why don’t the pro-EU crowd join the Tories?

Theresa May has a rare talent for turning decent policy into a political problem. Her general election manifesto last year contained an unusually high number of quite sensible and even sometimes progressive ideas: it’s quite common around Westminster these days to hear Tory and Labour people alike admit that things like the “dementia tax”, a full-scale review of post-18 education and some technical-sounding stuff on corporate governance were all, in retrospect, quite solid, worthy attempts to address big public policy problems.