If I ask what do inches measure, you say space. If I ask what do seconds measure, the answer is time. Regardless of whatever you think that time is, it is a fact that we are measuring something with seconds. If you say it is deterioration (I call increasing entropy) then that is what time 'is.' You seem stuck on the idea that time is a material thing. It is no more material than space. What is space, it is distance, what is distance, it is the space between things. With space, something you say is real, is just as hard to describe without circularity as time is. That doesn't mean that either of these things are an illusion, it just means that physics hasn't been able to give us any definitive answer.
There are a lot of things in this reality that don't make sense but that doesn't mean that it isn't true. If you watched the videos, you would have seen one scientist say that because space and time scale differently is what gives us the weirdness of quantum mechanics. A particle in two places at once, quantum nonlocality. These are things that don't make sense yet are proven time and again to be absolutely true.