Its nothing to do with what other people are voting for. Have you not thought why there is so much venom toward the Tories? It's all been covered in here.
Continual lying about Labour's plans, continual lying about their plans (e.g. "We'll get non-EU immigration down to 100,000" - they've been saying that for 7 years!). Stealth privatisation of all public services, including NHS and selling off nuclear energy contracts recklessly to potential future enemies (Chinese are building nuclear plants here). They created a myth about Labour mismanaging and only borrowing yet the graphs are there showing the Tories are the ones who borrowed most. They don't manage the economy well, they sell off our assets for a short-term boost to their own pockets because so many of them and their spouses have vested financial interests in companies relating to Trident, other arms or private healthcare etc. Where is the long-term investment from them like Corbyn wants to bring about before it's too late? We need money long-term making schemes not giving that away to other countries every time.
All that and they've created record levels of homelessness, made people with disabilities or other health problems painfully struggle to get by etc. Record levels of suicide I imagine too.