yes, but as a party I think they have used all their political capital now. So even if they try to tough it out I think they are done. With all the strikes that are lined up and the level of public unrest this will likely end up being their "Thatcher poll tax moment" , except it won't be enough for the public for them to just change leader again and also changing leader 3 times in one parliamentary term is bonkers and indicative of a party / government that has zero credibility.
When you have the IMF telling you that your plan is bottled luncay then you technically have a massive problem, especially with the "moderate conversatives", who are the people you need to keep you in power.