Tradition is indeed living, but only in the sense that lesser (small “t”) traditions can develop in a homogeneous way, never by mutation or rupture. The error of historicism falsely concludes that “we are in different times,” as if truth itself could change. In reality, the crisis remains objectively the same as it was in Archbishop Lefebvre’s day, and he already provided the clear Catholic answers to it. Those answers remain valid because they were drawn from what Eternal Rome had already settled long before the Second Vatican Council. A handful of faithful Resistance priests continue this same fidelity today, preserving the unbroken attitude of the past thirty years.
Personally I think that if you stick to what you think is the right opinion decided by only one person, then your view of the situation gets very narrow.
You are correct Truth does not change, but how it is applied to different situations needs to be addressed. We are no longer living under Pope John Paul 2, we currently have Pope Leo XIV who has down graded Our Lady. Do you think +Lefebvre would react the same way to both Popes?