I think the biggest problem is the Tories getting away with conning people that disability benefits are a major issue and a significant cost in the first place.
There is absolutely no reason disability benefits "need" to be cut or "need" to become an election issue at all. The amount of money our government spends on disability benefits is minuscule; there are zillions of other things the government spends money on (some of them utterly pointless or dodgy) and no one ever suggests cutting them or making them an election issue.
Like: non-means tested, non-assessed benefits for wealthy older people. HS2. Politician expenses (duck houses for everyone! Free Armani suits and luxury jollies for councilmen!). Or simply waste, frittering and "error." Many billions of pounds are lost each year cross-departmentally on paperwork, procurement and inefficiency:
£billions in duplicated procurement (different news articles gave different exact figures, but consensus is billions).
MoD spending £6 million on earplugs that were never used, £7.2 million on a faulty mine detection system, and the infamous "£22 each lightbulbs".
MoJ accidentally spending £56m on a duplicate IT project.
Home Office spending £1.74 million on booking non-refundable plane tickets that were never used, and £427,000 on illegal weaponry that can't legally be used here.
DoE accidentally paying £1.2 million to the wrong account and not being able (or not bothering) to get it back.
Public sector fraud (ie benefits fraud but also payroll fraud, contractor fraud, people not paying their TV license, etc.) costs us £37.5 billion per year BUT private sector fraud (private businesses and the financial sector) costs us a whopping £144 billion per year! (Per official government figures for 2016).
Not to mention the billions lost through tax loopholes for the super wealthy and big businesses. Why are we so eager to let billionaires, multi-national corporations, fraudster bigwigs and politicians squander and flat out steal billions of OUR money, yet chase and demonise disabled people for that extra tenner a week?
Because the government and certain parts of the media are working together to brainwash people into accepting the scapegoating of people chosen specifically because they are perceived as being too weak to fight back, and too economically insignificant to be valuable.
Austerity is a lie. There is plenty of money to go round but the politicians and wealthy are keeping it out of our hands. We live in a country and a world that's still ruled by a corrupt elite. Don't fall for their lies.
If it's not a dealbreaker for you fine it's your choice. IMO both sides are pretty bad so this isn't an anti-Tory rant. But don't believe the lies that we have no choice but to take a tiny bit of money away from disabled people in order to prop up the NHS when the government is wasting or stealing countless billions on duck houses, wars, foreign bigwigs and paperwork errors.