I don't do this openly but I certainly think it. Not just about Tories (I've voted for them in the past) but for anyone who votes for a party that is intending to introduce policies that will hurt people.
Think of it this way, there are reportedly a large number of British people who went into agonizing depression and then killed themselves because of policies brought in by the conservative government. They had their means of keeping a roof over their heads and food on the table removed, and they couldn't see a better option than to kill themselves. Not whine on Facebook, not rant down the pub, but actually take their own lives.
Government and politics isn't some giant thought exercise where if you get it wrong we just sigh and vote for someone else in 5 years. If government gets it wrong, people suffer. People's lives get turned upside down. People die.
Now with the previous Cameron government there's an argument that people didn't know what would happen. There were certainly warning signs during the coalition, but its not unreasonable of people to think it wouldn't go so far. Now there is no excuse. People are dead, the NHS is being privatised, May has openly said she's going to attack our civil liberties and gut human rights law while continuing the vicious attack on welfare and now pensioners too.
If you vote for that to continue, then you're as responsible for the consequences as they are.