I think people who repeat the "strong stable economy" mantra perhaps haven't considered how any "strong" and "stable" economy might look outside of Milton Freidman's philosophical and economical outlook (which was embraced under Thatcher and continued under New Labour and under Cameron).
People are really busy trying to keep their heads above water, so generally take what is served to them and add salt and sugar to make it more palatable.
It's true, we do have a "strong and stable" economy, but it's strong and stable in accordance with Freidmanian (!?!) policy. And it's working as Freidman expected it to.
In other words we have a strong and stable Friedmaniam economy.
Unfortunately that kind economy also relies on (and states as part of the philosophy) the decimation of any public ownership, forbids the state making a profit (see council housing), relies on trickle down economics, and leads to an economy and society that is essentially very small Government, which socially promotes isolation over community, and which dismisses commonality in favour of social Darwinism.
All of these things are linked.
"The (Freidman influnced) economy" will be strong under Freindman (because the economy always belongs to those with the money) in the same way we could say that an (Islamic) state will always be strong under Islam, because the owners of the state, will be islamists and promote that ideology. You could of course insert any other religion.
The question is do we want to live under this kind of "strong economy"?
We demonstrably are all becoming worse off, meaning, collectively, as a nation we are actually losing control of "the economy" to a monied class. Even thought the GDP figures are distractingly positive. And I think we all know that! Both collectively, with the sale of publically owned assets, and individialy, with household debt skyrocketing the figures are there.
It will only continue. Freidman not only predicts it, but encourages it.
And then I wonder why can people not envisage a "different" kind of "strong economy" which isn't Friedman influenced if they doubt the ethical outcome of this type of "strong" and "stable" economy? I mean why keep moving if it's not working for you?
There are plenty of other philosophers to choose from. Plenty more people to base a vision on.
Seems bonkers to me (but that's just me).
Maybe the people who vote Conservative agree with the ethical outcome of it, and think social Darwinism is an acceptable societal outcome?
Maybe there has been no alternate view for such a long time people have forgotten?
Maybe the millionaire TV and Media moguls who promote this kind of economic ideology (read: Noam Chomsy's manufacturing consent), actually enjoy the benefits it gives them?
Perhaps it' all three. Perhaps it's none.
To me, at least, It doesn't seem to be very ethical.
But as to why people would vote for unethical "strong and stable" over an alternative ethical "strong and stable" , is really beyond me.
(caveat, I'm not saying that labour are promoting anything different, the have until now, just followed suit albeit with more mild spicing, it's just interesting that no one speaks of REAL alternative's and if they did, I highly suspect they'd be seen as bonkers by the media owners and treated as such)