> Another note on space junk is the effect on our atmosphere with all the "burning-up" of various materials.

Is this a huge concern? According to NASA [1], about 44 metric tons of meteors and meteorites enter the atmosphere daily, or about 16,000 tons annually, or about 35 million pounds. Of which 5000 tons is estimated to reach the ground. [2]

[1] https://science.nasa.gov/solar-system/meteors-meteorites/ [2] https://www.cnrs.fr/en/press/more-5000-tons-extraterrestrial...