Personally, I’ve heard over and over again that intention is everything to the point where it has become imprinted on my practice. This video caused me to stop, take a step back, and really examine that belief- which I think is an extremely valuable thing to do in our practices. 
So thank you so much for opening up this discussion, @Silverbear 
“If intention is all there is, are we to dismiss everything about witchcraft?”
After quite a bit of thought on this (and reading everyone’s amazing personal reflections on the subject!) I think it’s not something that we can draw a line down the middle of. I think we all agree that a caster’s intention is important, but that’s not the discussion here. The question raised is, can we do with magic purely with our intention, without any tools?
To this, after much thought and reflection, I would say yes, it is possible to cast magic with just intention. After all, what is meditation if not the power of our minds? What is shadow work, diving deep within ourselves? Inner Temple Work with the magic of visualizations? I, personally, consider these things to be magick- magick that requires nothing but the will and direction of our own minds. No tools necessary.
I believe that drawing on tools (herbs, wands, divination tools, etc.) or even outside forces (such as nature or the deities) can greatly enhance magick. These tools can be used to do so much: guide casting, assist beginners, provide confidence, add something extra to magick.
(And yes, I do I think there are some specific aspects of magick that do require tools- things such as Kitchen Witchery and Tarot.)
I often recommend witchy tools and use them quite a bit in my own practice. But for those just starting out, who don’t have access to equipment nor tools, can’t afford witchy things, need to keep their practice secret for safety reasons, or feel lost about where to get started- to them, I personally say with confidence that they should be able to practice their Craft with just their intention and desire for magick 
Wow, this was a very thought-provoking video! Thank you very much for putting this out there, @Silverbear. I appreciate your sharing your experience and opinions to open up a discussion.
Love and Light! 