Would a dyson sphere collapse into a black hole?

Based on this 5 minute YouTube video. Could Aliens 65 Million Light Years Away from Earth See Dinosaurs Alive?

What ? ? ? ?

@Tropical_Willie
A Dyson sphere
Anything with enough mass becomes a star. A star with enough mass becomes a super nova and maybe a black hole.
Chandrasekhar limit

Your minimum mass question illustrates that you’re missing the principle. It isn’t the mass, but the concentration of that mass which yields your black hole. As the video attests a glass sphere 28 light minutes across would collapse into a black hole. You can make a black hole out of anything if you can compress it beyond the density of a neutron star.

It seems to me that all it would take is one small particle of dust to set things in motion. From there it would mean that if everything falls into place at the precise moment it will continue the process

Whether something collapses into a black hole, depends on density.
A dyson sphere would be hollow, thus lack the density to collapse into a black hole.
It does not matter how large you make it. It is the difference between a glass ball, and a soap bubble.
Same with the hypothetical space telescope.
You are not going to build a huge glass lens. The light scattering effect of any refractive material makes this a terrible idea.
You would build a huge, segmented mirror, and again, you can build it as large as you want, because the density will never reach the amount necessary to collapse into a black hole.

@RedDeerGuy1 You might be interested in this new monster black hole recently discovered. The experts says it is so large that it shouldn’t exist, but yet it does