I mean it really sounds like you're not on their side at all. It's their job to help you succeed, apparently. From what you've said already, you don't care about the project either. You're happy to waste time and money. It sounds like they're right not to trust you.
If I'm a manager of a team thats struggling and now also sabotaging additional resources, because they havent got the right warm and fuzzies, I'm going to be looking to have some difficult conversations. I'm also going to be very critical of anyone who floats a lack of "trust" as the blocker without some concrete evidence to justify it.
Whatever concerns they might have is not for the contractor to address. They are between them and their own management who deemed them unable to deliver sufficiently.
Resistance is also not the same as sabotage. My assumption is that everyone is acting in good faith from their own perspective. An immediate issue I see that the contractor was brought in because folks were looking at the calendar and not the tasks. Now the team is being pushed to carve out tasks. If shovel ready tasks are identified first, almost certainly, things go smoother. You're not context switching everyone. Its far less chaotic.
What you seem to not understand is empathy is going to move the team forward and deliver. Jumping to bad faith immediately is likely not the fastest way to a solution. If someone is struggling, its useful to understand why and address those problems. Its often not because they're bad.